Home / 84,270.77-126,357.26-39,897.15

Finding the Fourth Proportional to 84,270.77, 126,357.26 and 39,897.15

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Solution

The fourth proportional to 84,270.77, 126,357.26 and 39,897.15 is: 59,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,270.77 : 126,357.26 = 39,897.15 : x
  2. Step 2: Convert to fraction form
    84,270.77/126,357.26 = 39,897.15/x
  3. Step 3: Cross multiply
    84,270.77x = 126,357.26 × 39,897.15
  4. Step 4: Simplify right side
    84,270.77x = 5,041,294,356.32
  5. Step 5: Solve for x
    x = 5,041,294,356.32/84,270.77
  6. Step 6: Final answer
    x = 59,822.57

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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.