Home / 101,032.24-139,421.44-55,710.20

Finding the Fourth Proportional to 101,032.24, 139,421.44 and 55,710.20

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Solution

The fourth proportional to 101,032.24, 139,421.44 and 55,710.20 is: 76,878.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,032.24 : 139,421.44 = 55,710.20 : x
  2. Step 2: Convert to fraction form
    101,032.24/139,421.44 = 55,710.20/x
  3. Step 3: Cross multiply
    101,032.24x = 139,421.44 × 55,710.20
  4. Step 4: Simplify right side
    101,032.24x = 7,767,196,306.69
  5. Step 5: Solve for x
    x = 7,767,196,306.69/101,032.24
  6. Step 6: Final answer
    x = 76,878.39

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.