Home / 86,307.06-129,462.21-23,979.18

Finding the Fourth Proportional to 86,307.06, 129,462.21 and 23,979.18

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Solution

The fourth proportional to 86,307.06, 129,462.21 and 23,979.18 is: 35,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,307.06 : 129,462.21 = 23,979.18 : x
  2. Step 2: Convert to fraction form
    86,307.06/129,462.21 = 23,979.18/x
  3. Step 3: Cross multiply
    86,307.06x = 129,462.21 × 23,979.18
  4. Step 4: Simplify right side
    86,307.06x = 3,104,397,636.79
  5. Step 5: Solve for x
    x = 3,104,397,636.79/86,307.06
  6. Step 6: Final answer
    x = 35,969.22

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1.5x scale

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.