Home / 84,801.08-127,204.32-42,658.13

Finding the Fourth Proportional to 84,801.08, 127,204.32 and 42,658.13

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Solution

The fourth proportional to 84,801.08, 127,204.32 and 42,658.13 is: 63,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,801.08 : 127,204.32 = 42,658.13 : x
  2. Step 2: Convert to fraction form
    84,801.08/127,204.32 = 42,658.13/x
  3. Step 3: Cross multiply
    84,801.08x = 127,204.32 × 42,658.13
  4. Step 4: Simplify right side
    84,801.08x = 5,426,298,419.12
  5. Step 5: Solve for x
    x = 5,426,298,419.12/84,801.08
  6. Step 6: Final answer
    x = 63,988.55

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1.5x scale

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.