Home / 84,478.96-126,762.12-37,127.28

Finding the Fourth Proportional to 84,478.96, 126,762.12 and 37,127.28

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Solution

The fourth proportional to 84,478.96, 126,762.12 and 37,127.28 is: 55,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,478.96 : 126,762.12 = 37,127.28 : x
  2. Step 2: Convert to fraction form
    84,478.96/126,762.12 = 37,127.28/x
  3. Step 3: Cross multiply
    84,478.96x = 126,762.12 × 37,127.28
  4. Step 4: Simplify right side
    84,478.96x = 4,706,332,088.82
  5. Step 5: Solve for x
    x = 4,706,332,088.82/84,478.96
  6. Step 6: Final answer
    x = 55,710.11

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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.