Home / 86,280.14-129,403.80-29,356.63

Finding the Fourth Proportional to 86,280.14, 129,403.80 and 29,356.63

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Solution

The fourth proportional to 86,280.14, 129,403.80 and 29,356.63 is: 44,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,280.14 : 129,403.80 = 29,356.63 : x
  2. Step 2: Convert to fraction form
    86,280.14/129,403.80 = 29,356.63/x
  3. Step 3: Cross multiply
    86,280.14x = 129,403.80 × 29,356.63
  4. Step 4: Simplify right side
    86,280.14x = 3,798,859,236.25
  5. Step 5: Solve for x
    x = 3,798,859,236.25/86,280.14
  6. Step 6: Final answer
    x = 44,029.36

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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.