Home / 52,701.28-72,728.84-28,829.52

Finding the Fourth Proportional to 52,701.28, 72,728.84 and 28,829.52

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Solution

The fourth proportional to 52,701.28, 72,728.84 and 28,829.52 is: 39,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,701.28 : 72,728.84 = 28,829.52 : x
  2. Step 2: Convert to fraction form
    52,701.28/72,728.84 = 28,829.52/x
  3. Step 3: Cross multiply
    52,701.28x = 72,728.84 × 28,829.52
  4. Step 4: Simplify right side
    52,701.28x = 2,096,737,547.36
  5. Step 5: Solve for x
    x = 2,096,737,547.36/52,701.28
  6. Step 6: Final answer
    x = 39,785.32

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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.