Home / 63,657.32-87,920.91-42,399.68

Finding the Fourth Proportional to 63,657.32, 87,920.91 and 42,399.68

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Solution

The fourth proportional to 63,657.32, 87,920.91 and 42,399.68 is: 58,560.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,657.32 : 87,920.91 = 42,399.68 : x
  2. Step 2: Convert to fraction form
    63,657.32/87,920.91 = 42,399.68/x
  3. Step 3: Cross multiply
    63,657.32x = 87,920.91 × 42,399.68
  4. Step 4: Simplify right side
    63,657.32x = 3,727,818,009.70
  5. Step 5: Solve for x
    x = 3,727,818,009.70/63,657.32
  6. Step 6: Final answer
    x = 58,560.72

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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.