Home / 85,363.02-127,981.10-40,947.48

Finding the Fourth Proportional to 85,363.02, 127,981.10 and 40,947.48

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Solution

The fourth proportional to 85,363.02, 127,981.10 and 40,947.48 is: 61,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,363.02 : 127,981.10 = 40,947.48 : x
  2. Step 2: Convert to fraction form
    85,363.02/127,981.10 = 40,947.48/x
  3. Step 3: Cross multiply
    85,363.02x = 127,981.10 × 40,947.48
  4. Step 4: Simplify right side
    85,363.02x = 5,240,503,532.63
  5. Step 5: Solve for x
    x = 5,240,503,532.63/85,363.02
  6. Step 6: Final answer
    x = 61,390.79

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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.