Home / 84,587.20-126,893.88-25,416.16

Finding the Fourth Proportional to 84,587.20, 126,893.88 and 25,416.16

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Solution

The fourth proportional to 84,587.20, 126,893.88 and 25,416.16 is: 38,128.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,587.20 : 126,893.88 = 25,416.16 : x
  2. Step 2: Convert to fraction form
    84,587.20/126,893.88 = 25,416.16/x
  3. Step 3: Cross multiply
    84,587.20x = 126,893.88 × 25,416.16
  4. Step 4: Simplify right side
    84,587.20x = 3,225,155,157.10
  5. Step 5: Solve for x
    x = 3,225,155,157.10/84,587.20
  6. Step 6: Final answer
    x = 38,128.17

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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.