Home / 86,532.06-130,005.45-55,428.06

Finding the Fourth Proportional to 86,532.06, 130,005.45 and 55,428.06

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Solution

The fourth proportional to 86,532.06, 130,005.45 and 55,428.06 is: 83,274.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,532.06 : 130,005.45 = 55,428.06 : x
  2. Step 2: Convert to fraction form
    86,532.06/130,005.45 = 55,428.06/x
  3. Step 3: Cross multiply
    86,532.06x = 130,005.45 × 55,428.06
  4. Step 4: Simplify right side
    86,532.06x = 7,205,949,882.93
  5. Step 5: Solve for x
    x = 7,205,949,882.93/86,532.06
  6. Step 6: Final answer
    x = 83,274.91

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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.