Home / 86,817.85-130,267.29-30,700.46

Finding the Fourth Proportional to 86,817.85, 130,267.29 and 30,700.46

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Solution

The fourth proportional to 86,817.85, 130,267.29 and 30,700.46 is: 46,065.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,817.85 : 130,267.29 = 30,700.46 : x
  2. Step 2: Convert to fraction form
    86,817.85/130,267.29 = 30,700.46/x
  3. Step 3: Cross multiply
    86,817.85x = 130,267.29 × 30,700.46
  4. Step 4: Simplify right side
    86,817.85x = 3,999,265,725.95
  5. Step 5: Solve for x
    x = 3,999,265,725.95/86,817.85
  6. Step 6: Final answer
    x = 46,065.02

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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.