Home / 81,202.32-121,677.84-56,291.04

Finding the Fourth Proportional to 81,202.32, 121,677.84 and 56,291.04

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Solution

The fourth proportional to 81,202.32, 121,677.84 and 56,291.04 is: 84,349.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,202.32 : 121,677.84 = 56,291.04 : x
  2. Step 2: Convert to fraction form
    81,202.32/121,677.84 = 56,291.04/x
  3. Step 3: Cross multiply
    81,202.32x = 121,677.84 × 56,291.04
  4. Step 4: Simplify right side
    81,202.32x = 6,849,372,158.55
  5. Step 5: Solve for x
    x = 6,849,372,158.55/81,202.32
  6. Step 6: Final answer
    x = 84,349.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.