Home / 99,344.62-137,125.13-56,931.40

Finding the Fourth Proportional to 99,344.62, 137,125.13 and 56,931.40

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Solution

The fourth proportional to 99,344.62, 137,125.13 and 56,931.40 is: 78,582.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,344.62 : 137,125.13 = 56,931.40 : x
  2. Step 2: Convert to fraction form
    99,344.62/137,125.13 = 56,931.40/x
  3. Step 3: Cross multiply
    99,344.62x = 137,125.13 × 56,931.40
  4. Step 4: Simplify right side
    99,344.62x = 7,806,725,626.08
  5. Step 5: Solve for x
    x = 7,806,725,626.08/99,344.62
  6. Step 6: Final answer
    x = 78,582.27

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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.