Home / 90,700.15-136,050.56-27,520.81

Finding the Fourth Proportional to 90,700.15, 136,050.56 and 27,520.81

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Solution

The fourth proportional to 90,700.15, 136,050.56 and 27,520.81 is: 41,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,700.15 : 136,050.56 = 27,520.81 : x
  2. Step 2: Convert to fraction form
    90,700.15/136,050.56 = 27,520.81/x
  3. Step 3: Cross multiply
    90,700.15x = 136,050.56 × 27,520.81
  4. Step 4: Simplify right side
    90,700.15x = 3,744,221,612.15
  5. Step 5: Solve for x
    x = 3,744,221,612.15/90,700.15
  6. Step 6: Final answer
    x = 41,281.32

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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.