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Finding the Fourth Proportional to 85,068.30, 117,393.10 and 47,342.55

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Solution

The fourth proportional to 85,068.30, 117,393.10 and 47,342.55 is: 65,332.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,068.30 : 117,393.10 = 47,342.55 : x
  2. Step 2: Convert to fraction form
    85,068.30/117,393.10 = 47,342.55/x
  3. Step 3: Cross multiply
    85,068.30x = 117,393.10 × 47,342.55
  4. Step 4: Simplify right side
    85,068.30x = 5,557,688,706.41
  5. Step 5: Solve for x
    x = 5,557,688,706.41/85,068.30
  6. Step 6: Final answer
    x = 65,332.08

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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.