Home / 83,254.20-124,881.30-47,715.45

Finding the Fourth Proportional to 83,254.20, 124,881.30 and 47,715.45

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Solution

The fourth proportional to 83,254.20, 124,881.30 and 47,715.45 is: 71,573.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,254.20 : 124,881.30 = 47,715.45 : x
  2. Step 2: Convert to fraction form
    83,254.20/124,881.30 = 47,715.45/x
  3. Step 3: Cross multiply
    83,254.20x = 124,881.30 × 47,715.45
  4. Step 4: Simplify right side
    83,254.20x = 5,958,767,426.09
  5. Step 5: Solve for x
    x = 5,958,767,426.09/83,254.20
  6. Step 6: Final answer
    x = 71,573.18

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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.