Home / 77,332.42-115,980.15-56,517.65

Finding the Fourth Proportional to 77,332.42, 115,980.15 and 56,517.65

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Solution

The fourth proportional to 77,332.42, 115,980.15 and 56,517.65 is: 84,762.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,332.42 : 115,980.15 = 56,517.65 : x
  2. Step 2: Convert to fraction form
    77,332.42/115,980.15 = 56,517.65/x
  3. Step 3: Cross multiply
    77,332.42x = 115,980.15 × 56,517.65
  4. Step 4: Simplify right side
    77,332.42x = 6,554,925,591.61
  5. Step 5: Solve for x
    x = 6,554,925,591.61/77,332.42
  6. Step 6: Final answer
    x = 84,762.97

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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.