Home / 90,001.40-135,050.70-40,089.20

Finding the Fourth Proportional to 90,001.40, 135,050.70 and 40,089.20

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Solution

The fourth proportional to 90,001.40, 135,050.70 and 40,089.20 is: 60,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,001.40 : 135,050.70 = 40,089.20 : x
  2. Step 2: Convert to fraction form
    90,001.40/135,050.70 = 40,089.20/x
  3. Step 3: Cross multiply
    90,001.40x = 135,050.70 × 40,089.20
  4. Step 4: Simplify right side
    90,001.40x = 5,414,074,522.44
  5. Step 5: Solve for x
    x = 5,414,074,522.44/90,001.40
  6. Step 6: Final answer
    x = 60,155.45

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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.