Home / 83,653.12-115,397.76-67,755.52

Finding the Fourth Proportional to 83,653.12, 115,397.76 and 67,755.52

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Solution

The fourth proportional to 83,653.12, 115,397.76 and 67,755.52 is: 93,467.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,653.12 : 115,397.76 = 67,755.52 : x
  2. Step 2: Convert to fraction form
    83,653.12/115,397.76 = 67,755.52/x
  3. Step 3: Cross multiply
    83,653.12x = 115,397.76 × 67,755.52
  4. Step 4: Simplify right side
    83,653.12x = 7,818,835,235.64
  5. Step 5: Solve for x
    x = 7,818,835,235.64/83,653.12
  6. Step 6: Final answer
    x = 93,467.35

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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.