Home / 67,666.08-93,371.40-38,989.92

Finding the Fourth Proportional to 67,666.08, 93,371.40 and 38,989.92

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Solution

The fourth proportional to 67,666.08, 93,371.40 and 38,989.92 is: 53,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,666.08 : 93,371.40 = 38,989.92 : x
  2. Step 2: Convert to fraction form
    67,666.08/93,371.40 = 38,989.92/x
  3. Step 3: Cross multiply
    67,666.08x = 93,371.40 × 38,989.92
  4. Step 4: Simplify right side
    67,666.08x = 3,640,543,416.29
  5. Step 5: Solve for x
    x = 3,640,543,416.29/67,666.08
  6. Step 6: Final answer
    x = 53,801.60

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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.