Home / 90,869.18-136,319.36-34,714.31

Finding the Fourth Proportional to 90,869.18, 136,319.36 and 34,714.31

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Solution

The fourth proportional to 90,869.18, 136,319.36 and 34,714.31 is: 52,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,869.18 : 136,319.36 = 34,714.31 : x
  2. Step 2: Convert to fraction form
    90,869.18/136,319.36 = 34,714.31/x
  3. Step 3: Cross multiply
    90,869.18x = 136,319.36 × 34,714.31
  4. Step 4: Simplify right side
    90,869.18x = 4,732,232,522.04
  5. Step 5: Solve for x
    x = 4,732,232,522.04/90,869.18
  6. Step 6: Final answer
    x = 52,077.42

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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.