Home / 81,515.04-112,493.64-47,545.24

Finding the Fourth Proportional to 81,515.04, 112,493.64 and 47,545.24

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Solution

The fourth proportional to 81,515.04, 112,493.64 and 47,545.24 is: 65,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,515.04 : 112,493.64 = 47,545.24 : x
  2. Step 2: Convert to fraction form
    81,515.04/112,493.64 = 47,545.24/x
  3. Step 3: Cross multiply
    81,515.04x = 112,493.64 × 47,545.24
  4. Step 4: Simplify right side
    81,515.04x = 5,348,537,112.27
  5. Step 5: Solve for x
    x = 5,348,537,112.27/81,515.04
  6. Step 6: Final answer
    x = 65,614.11

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1.5x scale

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.