Home / 99,569.47-137,401.90-54,247.81

Finding the Fourth Proportional to 99,569.47, 137,401.90 and 54,247.81

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Solution

The fourth proportional to 99,569.47, 137,401.90 and 54,247.81 is: 74,859.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,569.47 : 137,401.90 = 54,247.81 : x
  2. Step 2: Convert to fraction form
    99,569.47/137,401.90 = 54,247.81/x
  3. Step 3: Cross multiply
    99,569.47x = 137,401.90 × 54,247.81
  4. Step 4: Simplify right side
    99,569.47x = 7,453,752,164.84
  5. Step 5: Solve for x
    x = 7,453,752,164.84/99,569.47
  6. Step 6: Final answer
    x = 74,859.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.