Home / 90,333.10-135,444.93-40,403.89

Finding the Fourth Proportional to 90,333.10, 135,444.93 and 40,403.89

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Solution

The fourth proportional to 90,333.10, 135,444.93 and 40,403.89 is: 60,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,333.10 : 135,444.93 = 40,403.89 : x
  2. Step 2: Convert to fraction form
    90,333.10/135,444.93 = 40,403.89/x
  3. Step 3: Cross multiply
    90,333.10x = 135,444.93 × 40,403.89
  4. Step 4: Simplify right side
    90,333.10x = 5,472,502,052.78
  5. Step 5: Solve for x
    x = 5,472,502,052.78/90,333.10
  6. Step 6: Final answer
    x = 60,581.36

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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.