Home / 57,639.64-86,449.67-15,510.32

Finding the Fourth Proportional to 57,639.64, 86,449.67 and 15,510.32

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Solution

The fourth proportional to 57,639.64, 86,449.67 and 15,510.32 is: 23,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,639.64 : 86,449.67 = 15,510.32 : x
  2. Step 2: Convert to fraction form
    57,639.64/86,449.67 = 15,510.32/x
  3. Step 3: Cross multiply
    57,639.64x = 86,449.67 × 15,510.32
  4. Step 4: Simplify right side
    57,639.64x = 1,340,862,261.04
  5. Step 5: Solve for x
    x = 1,340,862,261.04/57,639.64
  6. Step 6: Final answer
    x = 23,262.85

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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.