Home / 105,278.76-145,278.52-57,532.48

Finding the Fourth Proportional to 105,278.76, 145,278.52 and 57,532.48

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Solution

The fourth proportional to 105,278.76, 145,278.52 and 57,532.48 is: 79,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,278.76 : 145,278.52 = 57,532.48 : x
  2. Step 2: Convert to fraction form
    105,278.76/145,278.52 = 57,532.48/x
  3. Step 3: Cross multiply
    105,278.76x = 145,278.52 × 57,532.48
  4. Step 4: Simplify right side
    105,278.76x = 8,358,233,546.33
  5. Step 5: Solve for x
    x = 8,358,233,546.33/105,278.76
  6. Step 6: Final answer
    x = 79,391.45

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1.5x scale

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.