Home / 86,863.06-130,313.72-49,440.74

Finding the Fourth Proportional to 86,863.06, 130,313.72 and 49,440.74

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Solution

The fourth proportional to 86,863.06, 130,313.72 and 49,440.74 is: 74,172.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,863.06 : 130,313.72 = 49,440.74 : x
  2. Step 2: Convert to fraction form
    86,863.06/130,313.72 = 49,440.74/x
  3. Step 3: Cross multiply
    86,863.06x = 130,313.72 × 49,440.74
  4. Step 4: Simplify right side
    86,863.06x = 6,442,806,748.95
  5. Step 5: Solve for x
    x = 6,442,806,748.95/86,863.06
  6. Step 6: Final answer
    x = 74,172.00

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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.