Home / 86,833.11-130,265.15-30,705.80

Finding the Fourth Proportional to 86,833.11, 130,265.15 and 30,705.80

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Solution

The fourth proportional to 86,833.11, 130,265.15 and 30,705.80 is: 46,064.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,833.11 : 130,265.15 = 30,705.80 : x
  2. Step 2: Convert to fraction form
    86,833.11/130,265.15 = 30,705.80/x
  3. Step 3: Cross multiply
    86,833.11x = 130,265.15 × 30,705.80
  4. Step 4: Simplify right side
    86,833.11x = 3,999,894,838.02
  5. Step 5: Solve for x
    x = 3,999,894,838.02/86,833.11
  6. Step 6: Final answer
    x = 46,064.17

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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.