Home / 81,366.11-112,285.40-45,557.63

Finding the Fourth Proportional to 81,366.11, 112,285.40 and 45,557.63

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Solution

The fourth proportional to 81,366.11, 112,285.40 and 45,557.63 is: 62,869.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,366.11 : 112,285.40 = 45,557.63 : x
  2. Step 2: Convert to fraction form
    81,366.11/112,285.40 = 45,557.63/x
  3. Step 3: Cross multiply
    81,366.11x = 112,285.40 × 45,557.63
  4. Step 4: Simplify right side
    81,366.11x = 5,115,456,707.60
  5. Step 5: Solve for x
    x = 5,115,456,707.60/81,366.11
  6. Step 6: Final answer
    x = 62,869.62

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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.