Home / 42,088.52-63,140.06-18,716.76

Finding the Fourth Proportional to 42,088.52, 63,140.06 and 18,716.76

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Solution

The fourth proportional to 42,088.52, 63,140.06 and 18,716.76 is: 28,078.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,088.52 : 63,140.06 = 18,716.76 : x
  2. Step 2: Convert to fraction form
    42,088.52/63,140.06 = 18,716.76/x
  3. Step 3: Cross multiply
    42,088.52x = 63,140.06 × 18,716.76
  4. Step 4: Simplify right side
    42,088.52x = 1,181,777,349.41
  5. Step 5: Solve for x
    x = 1,181,777,349.41/42,088.52
  6. Step 6: Final answer
    x = 28,078.38

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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.