Home / 84,738.90-127,111.65-25,574.58

Finding the Fourth Proportional to 84,738.90, 127,111.65 and 25,574.58

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Solution

The fourth proportional to 84,738.90, 127,111.65 and 25,574.58 is: 38,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,738.90 : 127,111.65 = 25,574.58 : x
  2. Step 2: Convert to fraction form
    84,738.90/127,111.65 = 25,574.58/x
  3. Step 3: Cross multiply
    84,738.90x = 127,111.65 × 25,574.58
  4. Step 4: Simplify right side
    84,738.90x = 3,250,827,061.86
  5. Step 5: Solve for x
    x = 3,250,827,061.86/84,738.90
  6. Step 6: Final answer
    x = 38,362.87

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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.