Home / 63,175.68-87,192.18-38,990.76

Finding the Fourth Proportional to 63,175.68, 87,192.18 and 38,990.76

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Solution

The fourth proportional to 63,175.68, 87,192.18 and 38,990.76 is: 53,813.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,175.68 : 87,192.18 = 38,990.76 : x
  2. Step 2: Convert to fraction form
    63,175.68/87,192.18 = 38,990.76/x
  3. Step 3: Cross multiply
    63,175.68x = 87,192.18 × 38,990.76
  4. Step 4: Simplify right side
    63,175.68x = 3,399,689,364.26
  5. Step 5: Solve for x
    x = 3,399,689,364.26/63,175.68
  6. Step 6: Final answer
    x = 53,813.26

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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.