Home / 81,385.98-112,307.20-45,084.96

Finding the Fourth Proportional to 81,385.98, 112,307.20 and 45,084.96

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Solution

The fourth proportional to 81,385.98, 112,307.20 and 45,084.96 is: 62,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,385.98 : 112,307.20 = 45,084.96 : x
  2. Step 2: Convert to fraction form
    81,385.98/112,307.20 = 45,084.96/x
  3. Step 3: Cross multiply
    81,385.98x = 112,307.20 × 45,084.96
  4. Step 4: Simplify right side
    81,385.98x = 5,063,365,619.71
  5. Step 5: Solve for x
    x = 5,063,365,619.71/81,385.98
  6. Step 6: Final answer
    x = 62,214.22

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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.