Home / 84,025.02-126,039.96-31,424.46

Finding the Fourth Proportional to 84,025.02, 126,039.96 and 31,424.46

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Solution

The fourth proportional to 84,025.02, 126,039.96 and 31,424.46 is: 47,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,025.02 : 126,039.96 = 31,424.46 : x
  2. Step 2: Convert to fraction form
    84,025.02/126,039.96 = 31,424.46/x
  3. Step 3: Cross multiply
    84,025.02x = 126,039.96 × 31,424.46
  4. Step 4: Simplify right side
    84,025.02x = 3,960,737,681.42
  5. Step 5: Solve for x
    x = 3,960,737,681.42/84,025.02
  6. Step 6: Final answer
    x = 47,137.60

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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.