Home / 83,916.04-125,835.18-31,287.64

Finding the Fourth Proportional to 83,916.04, 125,835.18 and 31,287.64

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Solution

The fourth proportional to 83,916.04, 125,835.18 and 31,287.64 is: 46,916.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,916.04 : 125,835.18 = 31,287.64 : x
  2. Step 2: Convert to fraction form
    83,916.04/125,835.18 = 31,287.64/x
  3. Step 3: Cross multiply
    83,916.04x = 125,835.18 × 31,287.64
  4. Step 4: Simplify right side
    83,916.04x = 3,937,085,811.18
  5. Step 5: Solve for x
    x = 3,937,085,811.18/83,916.04
  6. Step 6: Final answer
    x = 46,916.96

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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.