Home / 92,945.12-139,417.40-26,385.30

Finding the Fourth Proportional to 92,945.12, 139,417.40 and 26,385.30

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Solution

The fourth proportional to 92,945.12, 139,417.40 and 26,385.30 is: 39,577.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,945.12 : 139,417.40 = 26,385.30 : x
  2. Step 2: Convert to fraction form
    92,945.12/139,417.40 = 26,385.30/x
  3. Step 3: Cross multiply
    92,945.12x = 139,417.40 × 26,385.30
  4. Step 4: Simplify right side
    92,945.12x = 3,678,569,318.95
  5. Step 5: Solve for x
    x = 3,678,569,318.95/92,945.12
  6. Step 6: Final answer
    x = 39,577.86

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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.