Home / 86,292.32-129,444.05-27,130.28

Finding the Fourth Proportional to 86,292.32, 129,444.05 and 27,130.28

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Solution

The fourth proportional to 86,292.32, 129,444.05 and 27,130.28 is: 40,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,292.32 : 129,444.05 = 27,130.28 : x
  2. Step 2: Convert to fraction form
    86,292.32/129,444.05 = 27,130.28/x
  3. Step 3: Cross multiply
    86,292.32x = 129,444.05 × 27,130.28
  4. Step 4: Simplify right side
    86,292.32x = 3,511,852,741.44
  5. Step 5: Solve for x
    x = 3,511,852,741.44/86,292.32
  6. Step 6: Final answer
    x = 40,697.17

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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.