Home / 86,916.11-130,432.58-30,755.98

Finding the Fourth Proportional to 86,916.11, 130,432.58 and 30,755.98

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Solution

The fourth proportional to 86,916.11, 130,432.58 and 30,755.98 is: 46,154.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,916.11 : 130,432.58 = 30,755.98 : x
  2. Step 2: Convert to fraction form
    86,916.11/130,432.58 = 30,755.98/x
  3. Step 3: Cross multiply
    86,916.11x = 130,432.58 × 30,755.98
  4. Step 4: Simplify right side
    86,916.11x = 4,011,581,946.42
  5. Step 5: Solve for x
    x = 4,011,581,946.42/86,916.11
  6. Step 6: Final answer
    x = 46,154.64

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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.