Home / 84,410.10-126,445.05-52,722.90

Finding the Fourth Proportional to 84,410.10, 126,445.05 and 52,722.90

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Solution

The fourth proportional to 84,410.10, 126,445.05 and 52,722.90 is: 78,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,410.10 : 126,445.05 = 52,722.90 : x
  2. Step 2: Convert to fraction form
    84,410.10/126,445.05 = 52,722.90/x
  3. Step 3: Cross multiply
    84,410.10x = 126,445.05 × 52,722.90
  4. Step 4: Simplify right side
    84,410.10x = 6,666,549,726.65
  5. Step 5: Solve for x
    x = 6,666,549,726.65/84,410.10
  6. Step 6: Final answer
    x = 78,978.10

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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.