Home / 86,209.31-129,316.14-23,880.35

Finding the Fourth Proportional to 86,209.31, 129,316.14 and 23,880.35

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Solution

The fourth proportional to 86,209.31, 129,316.14 and 23,880.35 is: 35,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,209.31 : 129,316.14 = 23,880.35 : x
  2. Step 2: Convert to fraction form
    86,209.31/129,316.14 = 23,880.35/x
  3. Step 3: Cross multiply
    86,209.31x = 129,316.14 × 23,880.35
  4. Step 4: Simplify right side
    86,209.31x = 3,088,114,683.85
  5. Step 5: Solve for x
    x = 3,088,114,683.85/86,209.31
  6. Step 6: Final answer
    x = 35,821.13

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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.