Home / 64,005.40-96,008.10-39,122.20

Finding the Fourth Proportional to 64,005.40, 96,008.10 and 39,122.20

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Solution

The fourth proportional to 64,005.40, 96,008.10 and 39,122.20 is: 58,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,005.40 : 96,008.10 = 39,122.20 : x
  2. Step 2: Convert to fraction form
    64,005.40/96,008.10 = 39,122.20/x
  3. Step 3: Cross multiply
    64,005.40x = 96,008.10 × 39,122.20
  4. Step 4: Simplify right side
    64,005.40x = 3,756,048,089.82
  5. Step 5: Solve for x
    x = 3,756,048,089.82/64,005.40
  6. Step 6: Final answer
    x = 58,683.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.