Home / 81,365.12-112,295.65-45,557.44

Finding the Fourth Proportional to 81,365.12, 112,295.65 and 45,557.44

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Solution

The fourth proportional to 81,365.12, 112,295.65 and 45,557.44 is: 62,875.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,365.12 : 112,295.65 = 45,557.44 : x
  2. Step 2: Convert to fraction form
    81,365.12/112,295.65 = 45,557.44/x
  3. Step 3: Cross multiply
    81,365.12x = 112,295.65 × 45,557.44
  4. Step 4: Simplify right side
    81,365.12x = 5,115,902,337.14
  5. Step 5: Solve for x
    x = 5,115,902,337.14/81,365.12
  6. Step 6: Final answer
    x = 62,875.87

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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.