Home / 99,941.65-137,932.27-57,500.18

Finding the Fourth Proportional to 99,941.65, 137,932.27 and 57,500.18

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Solution

The fourth proportional to 99,941.65, 137,932.27 and 57,500.18 is: 79,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,941.65 : 137,932.27 = 57,500.18 : x
  2. Step 2: Convert to fraction form
    99,941.65/137,932.27 = 57,500.18/x
  3. Step 3: Cross multiply
    99,941.65x = 137,932.27 × 57,500.18
  4. Step 4: Simplify right side
    99,941.65x = 7,931,130,036.64
  5. Step 5: Solve for x
    x = 7,931,130,036.64/99,941.65
  6. Step 6: Final answer
    x = 79,357.61

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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.