Home / 55,784.13-77,014.29-42,331.86

Finding the Fourth Proportional to 55,784.13, 77,014.29 and 42,331.86

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Solution

The fourth proportional to 55,784.13, 77,014.29 and 42,331.86 is: 58,442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,784.13 : 77,014.29 = 42,331.86 : x
  2. Step 2: Convert to fraction form
    55,784.13/77,014.29 = 42,331.86/x
  3. Step 3: Cross multiply
    55,784.13x = 77,014.29 × 42,331.86
  4. Step 4: Simplify right side
    55,784.13x = 3,260,158,142.28
  5. Step 5: Solve for x
    x = 3,260,158,142.28/55,784.13
  6. Step 6: Final answer
    x = 58,442.39

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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.