Home / 56,878.61-85,323.38-17,428.77

Finding the Fourth Proportional to 56,878.61, 85,323.38 and 17,428.77

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Solution

The fourth proportional to 56,878.61, 85,323.38 and 17,428.77 is: 26,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,878.61 : 85,323.38 = 17,428.77 : x
  2. Step 2: Convert to fraction form
    56,878.61/85,323.38 = 17,428.77/x
  3. Step 3: Cross multiply
    56,878.61x = 85,323.38 × 17,428.77
  4. Step 4: Simplify right side
    56,878.61x = 1,487,081,478.50
  5. Step 5: Solve for x
    x = 1,487,081,478.50/56,878.61
  6. Step 6: Final answer
    x = 26,144.83

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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.