Home / 81,368.18-112,282.76-45,557.86

Finding the Fourth Proportional to 81,368.18, 112,282.76 and 45,557.86

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Solution

The fourth proportional to 81,368.18, 112,282.76 and 45,557.86 is: 62,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,368.18 : 112,282.76 = 45,557.86 : x
  2. Step 2: Convert to fraction form
    81,368.18/112,282.76 = 45,557.86/x
  3. Step 3: Cross multiply
    81,368.18x = 112,282.76 × 45,557.86
  4. Step 4: Simplify right side
    81,368.18x = 5,115,362,260.49
  5. Step 5: Solve for x
    x = 5,115,362,260.49/81,368.18
  6. Step 6: Final answer
    x = 62,866.86

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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.