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Finding the Fourth Proportional to 85,071.68, 127,467.10 and 49,432.95

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Solution

The fourth proportional to 85,071.68, 127,467.10 and 49,432.95 is: 74,067.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,071.68 : 127,467.10 = 49,432.95 : x
  2. Step 2: Convert to fraction form
    85,071.68/127,467.10 = 49,432.95/x
  3. Step 3: Cross multiply
    85,071.68x = 127,467.10 × 49,432.95
  4. Step 4: Simplify right side
    85,071.68x = 6,301,075,099.61
  5. Step 5: Solve for x
    x = 6,301,075,099.61/85,071.68
  6. Step 6: Final answer
    x = 74,067.84

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1.5x scale

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.