Home / 51,318.61-70,819.02-28,657.99

Finding the Fourth Proportional to 51,318.61, 70,819.02 and 28,657.99

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Solution

The fourth proportional to 51,318.61, 70,819.02 and 28,657.99 is: 39,547.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,318.61 : 70,819.02 = 28,657.99 : x
  2. Step 2: Convert to fraction form
    51,318.61/70,819.02 = 28,657.99/x
  3. Step 3: Cross multiply
    51,318.61x = 70,819.02 × 28,657.99
  4. Step 4: Simplify right side
    51,318.61x = 2,029,530,766.97
  5. Step 5: Solve for x
    x = 2,029,530,766.97/51,318.61
  6. Step 6: Final answer
    x = 39,547.66

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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.