Home / 56,285.76-84,432.64-16,839.68

Finding the Fourth Proportional to 56,285.76, 84,432.64 and 16,839.68

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Solution

The fourth proportional to 56,285.76, 84,432.64 and 16,839.68 is: 25,260.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,285.76 : 84,432.64 = 16,839.68 : x
  2. Step 2: Convert to fraction form
    56,285.76/84,432.64 = 16,839.68/x
  3. Step 3: Cross multiply
    56,285.76x = 84,432.64 × 16,839.68
  4. Step 4: Simplify right side
    56,285.76x = 1,421,818,639.16
  5. Step 5: Solve for x
    x = 1,421,818,639.16/56,285.76
  6. Step 6: Final answer
    x = 25,260.72

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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.