Home / 81,312.44-121,810.82-59,926.30

Finding the Fourth Proportional to 81,312.44, 121,810.82 and 59,926.30

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Solution

The fourth proportional to 81,312.44, 121,810.82 and 59,926.30 is: 89,773.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,312.44 : 121,810.82 = 59,926.30 : x
  2. Step 2: Convert to fraction form
    81,312.44/121,810.82 = 59,926.30/x
  3. Step 3: Cross multiply
    81,312.44x = 121,810.82 × 59,926.30
  4. Step 4: Simplify right side
    81,312.44x = 7,299,671,742.57
  5. Step 5: Solve for x
    x = 7,299,671,742.57/81,312.44
  6. Step 6: Final answer
    x = 89,773.12

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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.