Home / 77,563.28-107,029.54-43,569.20

Finding the Fourth Proportional to 77,563.28, 107,029.54 and 43,569.20

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Solution

The fourth proportional to 77,563.28, 107,029.54 and 43,569.20 is: 60,121.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,563.28 : 107,029.54 = 43,569.20 : x
  2. Step 2: Convert to fraction form
    77,563.28/107,029.54 = 43,569.20/x
  3. Step 3: Cross multiply
    77,563.28x = 107,029.54 × 43,569.20
  4. Step 4: Simplify right side
    77,563.28x = 4,663,191,434.17
  5. Step 5: Solve for x
    x = 4,663,191,434.17/77,563.28
  6. Step 6: Final answer
    x = 60,121.12

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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.