Home / 84,970.46-127,447.40-25,806.65

Finding the Fourth Proportional to 84,970.46, 127,447.40 and 25,806.65

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Solution

The fourth proportional to 84,970.46, 127,447.40 and 25,806.65 is: 38,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,970.46 : 127,447.40 = 25,806.65 : x
  2. Step 2: Convert to fraction form
    84,970.46/127,447.40 = 25,806.65/x
  3. Step 3: Cross multiply
    84,970.46x = 127,447.40 × 25,806.65
  4. Step 4: Simplify right side
    84,970.46x = 3,288,989,872.49
  5. Step 5: Solve for x
    x = 3,288,989,872.49/84,970.46
  6. Step 6: Final answer
    x = 38,707.45

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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.