Home / 84,270.02-126,356.13-39,896.40

Finding the Fourth Proportional to 84,270.02, 126,356.13 and 39,896.40

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Solution

The fourth proportional to 84,270.02, 126,356.13 and 39,896.40 is: 59,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,270.02 : 126,356.13 = 39,896.40 : x
  2. Step 2: Convert to fraction form
    84,270.02/126,356.13 = 39,896.40/x
  3. Step 3: Cross multiply
    84,270.02x = 126,356.13 × 39,896.40
  4. Step 4: Simplify right side
    84,270.02x = 5,041,154,704.93
  5. Step 5: Solve for x
    x = 5,041,154,704.93/84,270.02
  6. Step 6: Final answer
    x = 59,821.45

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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.