Home / 92,678.08-138,909.54-42,653.16

Finding the Fourth Proportional to 92,678.08, 138,909.54 and 42,653.16

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Solution

The fourth proportional to 92,678.08, 138,909.54 and 42,653.16 is: 63,930.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,678.08 : 138,909.54 = 42,653.16 : x
  2. Step 2: Convert to fraction form
    92,678.08/138,909.54 = 42,653.16/x
  3. Step 3: Cross multiply
    92,678.08x = 138,909.54 × 42,653.16
  4. Step 4: Simplify right side
    92,678.08x = 5,924,930,835.15
  5. Step 5: Solve for x
    x = 5,924,930,835.15/92,678.08
  6. Step 6: Final answer
    x = 63,930.23

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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.