Home / 88,720.90-133,081.35-57,228.10

Finding the Fourth Proportional to 88,720.90, 133,081.35 and 57,228.10

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Solution

The fourth proportional to 88,720.90, 133,081.35 and 57,228.10 is: 85,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,720.90 : 133,081.35 = 57,228.10 : x
  2. Step 2: Convert to fraction form
    88,720.90/133,081.35 = 57,228.10/x
  3. Step 3: Cross multiply
    88,720.90x = 133,081.35 × 57,228.10
  4. Step 4: Simplify right side
    88,720.90x = 7,615,992,805.94
  5. Step 5: Solve for x
    x = 7,615,992,805.94/88,720.90
  6. Step 6: Final answer
    x = 85,842.15

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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.