Home / 99,541.80-137,362.50-61,815.24

Finding the Fourth Proportional to 99,541.80, 137,362.50 and 61,815.24

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Solution

The fourth proportional to 99,541.80, 137,362.50 and 61,815.24 is: 85,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,541.80 : 137,362.50 = 61,815.24 : x
  2. Step 2: Convert to fraction form
    99,541.80/137,362.50 = 61,815.24/x
  3. Step 3: Cross multiply
    99,541.80x = 137,362.50 × 61,815.24
  4. Step 4: Simplify right side
    99,541.80x = 8,491,095,904.50
  5. Step 5: Solve for x
    x = 8,491,095,904.50/99,541.80
  6. Step 6: Final answer
    x = 85,301.81

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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.