Home / 86,065.23-129,045.00-29,881.20

Finding the Fourth Proportional to 86,065.23, 129,045.00 and 29,881.20

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Solution

The fourth proportional to 86,065.23, 129,045.00 and 29,881.20 is: 44,803.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,065.23 : 129,045.00 = 29,881.20 : x
  2. Step 2: Convert to fraction form
    86,065.23/129,045.00 = 29,881.20/x
  3. Step 3: Cross multiply
    86,065.23x = 129,045.00 × 29,881.20
  4. Step 4: Simplify right side
    86,065.23x = 3,856,019,881.89
  5. Step 5: Solve for x
    x = 3,856,019,881.89/86,065.23
  6. Step 6: Final answer
    x = 44,803.46

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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.