Home / 86,955.20-130,344.54-49,437.72

Finding the Fourth Proportional to 86,955.20, 130,344.54 and 49,437.72

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Solution

The fourth proportional to 86,955.20, 130,344.54 and 49,437.72 is: 74,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,955.20 : 130,344.54 = 49,437.72 : x
  2. Step 2: Convert to fraction form
    86,955.20/130,344.54 = 49,437.72/x
  3. Step 3: Cross multiply
    86,955.20x = 130,344.54 × 49,437.72
  4. Step 4: Simplify right side
    86,955.20x = 6,443,936,872.05
  5. Step 5: Solve for x
    x = 6,443,936,872.05/86,955.20
  6. Step 6: Final answer
    x = 74,106.40

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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.