Home / 90,507.90-135,540.18-63,788.16

Finding the Fourth Proportional to 90,507.90, 135,540.18 and 63,788.16

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Solution

The fourth proportional to 90,507.90, 135,540.18 and 63,788.16 is: 95,526.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,507.90 : 135,540.18 = 63,788.16 : x
  2. Step 2: Convert to fraction form
    90,507.90/135,540.18 = 63,788.16/x
  3. Step 3: Cross multiply
    90,507.90x = 135,540.18 × 63,788.16
  4. Step 4: Simplify right side
    90,507.90x = 8,645,858,688.27
  5. Step 5: Solve for x
    x = 8,645,858,688.27/90,507.90
  6. Step 6: Final answer
    x = 95,526.01

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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.