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Finding the Fourth Proportional to 85,352.64, 117,772.56 and 47,626.80

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Solution

The fourth proportional to 85,352.64, 117,772.56 and 47,626.80 is: 65,717.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,352.64 : 117,772.56 = 47,626.80 : x
  2. Step 2: Convert to fraction form
    85,352.64/117,772.56 = 47,626.80/x
  3. Step 3: Cross multiply
    85,352.64x = 117,772.56 × 47,626.80
  4. Step 4: Simplify right side
    85,352.64x = 5,609,130,160.61
  5. Step 5: Solve for x
    x = 5,609,130,160.61/85,352.64
  6. Step 6: Final answer
    x = 65,717.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.