Home / 83,429.52-115,255.08-67,618.32

Finding the Fourth Proportional to 83,429.52, 115,255.08 and 67,618.32

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Solution

The fourth proportional to 83,429.52, 115,255.08 and 67,618.32 is: 93,412.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,429.52 : 115,255.08 = 67,618.32 : x
  2. Step 2: Convert to fraction form
    83,429.52/115,255.08 = 67,618.32/x
  3. Step 3: Cross multiply
    83,429.52x = 115,255.08 × 67,618.32
  4. Step 4: Simplify right side
    83,429.52x = 7,793,354,881.07
  5. Step 5: Solve for x
    x = 7,793,354,881.07/83,429.52
  6. Step 6: Final answer
    x = 93,412.44

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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.