Home / 89,779.28-134,520.08-54,612.56

Finding the Fourth Proportional to 89,779.28, 134,520.08 and 54,612.56

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Solution

The fourth proportional to 89,779.28, 134,520.08 and 54,612.56 is: 81,828.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,779.28 : 134,520.08 = 54,612.56 : x
  2. Step 2: Convert to fraction form
    89,779.28/134,520.08 = 54,612.56/x
  3. Step 3: Cross multiply
    89,779.28x = 134,520.08 × 54,612.56
  4. Step 4: Simplify right side
    89,779.28x = 7,346,485,940.20
  5. Step 5: Solve for x
    x = 7,346,485,940.20/89,779.28
  6. Step 6: Final answer
    x = 81,828.30

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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.