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Finding the Fourth Proportional to 84,870.93, 127,334.03 and 40,491.93

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Solution

The fourth proportional to 84,870.93, 127,334.03 and 40,491.93 is: 60,751.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,870.93 : 127,334.03 = 40,491.93 : x
  2. Step 2: Convert to fraction form
    84,870.93/127,334.03 = 40,491.93/x
  3. Step 3: Cross multiply
    84,870.93x = 127,334.03 × 40,491.93
  4. Step 4: Simplify right side
    84,870.93x = 5,156,000,426.92
  5. Step 5: Solve for x
    x = 5,156,000,426.92/84,870.93
  6. Step 6: Final answer
    x = 60,751.08

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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.