Home / 52,703.74-72,731.78-28,829.90

Finding the Fourth Proportional to 52,703.74, 72,731.78 and 28,829.90

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Solution

The fourth proportional to 52,703.74, 72,731.78 and 28,829.90 is: 39,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,703.74 : 72,731.78 = 28,829.90 : x
  2. Step 2: Convert to fraction form
    52,703.74/72,731.78 = 28,829.90/x
  3. Step 3: Cross multiply
    52,703.74x = 72,731.78 × 28,829.90
  4. Step 4: Simplify right side
    52,703.74x = 2,096,849,800.07
  5. Step 5: Solve for x
    x = 2,096,849,800.07/52,703.74
  6. Step 6: Final answer
    x = 39,785.60

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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.