Home / 92,579.04-138,763.56-42,555.78

Finding the Fourth Proportional to 92,579.04, 138,763.56 and 42,555.78

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Solution

The fourth proportional to 92,579.04, 138,763.56 and 42,555.78 is: 63,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,579.04 : 138,763.56 = 42,555.78 : x
  2. Step 2: Convert to fraction form
    92,579.04/138,763.56 = 42,555.78/x
  3. Step 3: Cross multiply
    92,579.04x = 138,763.56 × 42,555.78
  4. Step 4: Simplify right side
    92,579.04x = 5,905,191,531.38
  5. Step 5: Solve for x
    x = 5,905,191,531.38/92,579.04
  6. Step 6: Final answer
    x = 63,785.40

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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.