Home / 90,522.18-135,750.87-31,341.96

Finding the Fourth Proportional to 90,522.18, 135,750.87 and 31,341.96

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Solution

The fourth proportional to 90,522.18, 135,750.87 and 31,341.96 is: 47,001.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,522.18 : 135,750.87 = 31,341.96 : x
  2. Step 2: Convert to fraction form
    90,522.18/135,750.87 = 31,341.96/x
  3. Step 3: Cross multiply
    90,522.18x = 135,750.87 × 31,341.96
  4. Step 4: Simplify right side
    90,522.18x = 4,254,698,337.51
  5. Step 5: Solve for x
    x = 4,254,698,337.51/90,522.18
  6. Step 6: Final answer
    x = 47,001.72

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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.