Home / 72,312.14-99,785.22-40,476.71

Finding the Fourth Proportional to 72,312.14, 99,785.22 and 40,476.71

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Solution

The fourth proportional to 72,312.14, 99,785.22 and 40,476.71 is: 55,854.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,312.14 : 99,785.22 = 40,476.71 : x
  2. Step 2: Convert to fraction form
    72,312.14/99,785.22 = 40,476.71/x
  3. Step 3: Cross multiply
    72,312.14x = 99,785.22 × 40,476.71
  4. Step 4: Simplify right side
    72,312.14x = 4,038,977,509.90
  5. Step 5: Solve for x
    x = 4,038,977,509.90/72,312.14
  6. Step 6: Final answer
    x = 55,854.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.