Home / 86,409.36-129,567.13-38,968.95

Finding the Fourth Proportional to 86,409.36, 129,567.13 and 38,968.95

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Solution

The fourth proportional to 86,409.36, 129,567.13 and 38,968.95 is: 58,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,409.36 : 129,567.13 = 38,968.95 : x
  2. Step 2: Convert to fraction form
    86,409.36/129,567.13 = 38,968.95/x
  3. Step 3: Cross multiply
    86,409.36x = 129,567.13 × 38,968.95
  4. Step 4: Simplify right side
    86,409.36x = 5,049,095,010.61
  5. Step 5: Solve for x
    x = 5,049,095,010.61/86,409.36
  6. Step 6: Final answer
    x = 58,432.27

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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.