Home / 86,930.08-130,438.86-64,787.92

Finding the Fourth Proportional to 86,930.08, 130,438.86 and 64,787.92

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Solution

The fourth proportional to 86,930.08, 130,438.86 and 64,787.92 is: 97,214.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,930.08 : 130,438.86 = 64,787.92 : x
  2. Step 2: Convert to fraction form
    86,930.08/130,438.86 = 64,787.92/x
  3. Step 3: Cross multiply
    86,930.08x = 130,438.86 × 64,787.92
  4. Step 4: Simplify right side
    86,930.08x = 8,450,862,426.57
  5. Step 5: Solve for x
    x = 8,450,862,426.57/86,930.08
  6. Step 6: Final answer
    x = 97,214.48

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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.