Home / 42,108.98-58,129.38-27,777.33

Finding the Fourth Proportional to 42,108.98, 58,129.38 and 27,777.33

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Solution

The fourth proportional to 42,108.98, 58,129.38 and 27,777.33 is: 38,345.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,108.98 : 58,129.38 = 27,777.33 : x
  2. Step 2: Convert to fraction form
    42,108.98/58,129.38 = 27,777.33/x
  3. Step 3: Cross multiply
    42,108.98x = 58,129.38 × 27,777.33
  4. Step 4: Simplify right side
    42,108.98x = 1,614,678,970.96
  5. Step 5: Solve for x
    x = 1,614,678,970.96/42,108.98
  6. Step 6: Final answer
    x = 38,345.25

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1.5x scale

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.