Home / 90,316.60-135,551.70-40,473.40

Finding the Fourth Proportional to 90,316.60, 135,551.70 and 40,473.40

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Solution

The fourth proportional to 90,316.60, 135,551.70 and 40,473.40 is: 60,744.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,316.60 : 135,551.70 = 40,473.40 : x
  2. Step 2: Convert to fraction form
    90,316.60/135,551.70 = 40,473.40/x
  3. Step 3: Cross multiply
    90,316.60x = 135,551.70 × 40,473.40
  4. Step 4: Simplify right side
    90,316.60x = 5,486,238,174.78
  5. Step 5: Solve for x
    x = 5,486,238,174.78/90,316.60
  6. Step 6: Final answer
    x = 60,744.52

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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.