Home / 99,332.81-137,074.82-56,311.69

Finding the Fourth Proportional to 99,332.81, 137,074.82 and 56,311.69

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Solution

The fourth proportional to 99,332.81, 137,074.82 and 56,311.69 is: 77,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,332.81 : 137,074.82 = 56,311.69 : x
  2. Step 2: Convert to fraction form
    99,332.81/137,074.82 = 56,311.69/x
  3. Step 3: Cross multiply
    99,332.81x = 137,074.82 × 56,311.69
  4. Step 4: Simplify right side
    99,332.81x = 7,718,914,568.74
  5. Step 5: Solve for x
    x = 7,718,914,568.74/99,332.81
  6. Step 6: Final answer
    x = 77,707.60

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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.