Home / 63,329.40-87,561.54-55,456.20

Finding the Fourth Proportional to 63,329.40, 87,561.54 and 55,456.20

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Solution

The fourth proportional to 63,329.40, 87,561.54 and 55,456.20 is: 76,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,329.40 : 87,561.54 = 55,456.20 : x
  2. Step 2: Convert to fraction form
    63,329.40/87,561.54 = 55,456.20/x
  3. Step 3: Cross multiply
    63,329.40x = 87,561.54 × 55,456.20
  4. Step 4: Simplify right side
    63,329.40x = 4,855,830,274.55
  5. Step 5: Solve for x
    x = 4,855,830,274.55/63,329.40
  6. Step 6: Final answer
    x = 76,675.77

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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.