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Finding the Fourth Proportional to 85,622.97, 118,159.80 and 47,384.10

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Solution

The fourth proportional to 85,622.97, 118,159.80 and 47,384.10 is: 65,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,622.97 : 118,159.80 = 47,384.10 : x
  2. Step 2: Convert to fraction form
    85,622.97/118,159.80 = 47,384.10/x
  3. Step 3: Cross multiply
    85,622.97x = 118,159.80 × 47,384.10
  4. Step 4: Simplify right side
    85,622.97x = 5,598,895,779.18
  5. Step 5: Solve for x
    x = 5,598,895,779.18/85,622.97
  6. Step 6: Final answer
    x = 65,390.11

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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.