Home / 77,680.49-107,248.34-53,192.28

Finding the Fourth Proportional to 77,680.49, 107,248.34 and 53,192.28

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Solution

The fourth proportional to 77,680.49, 107,248.34 and 53,192.28 is: 73,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,680.49 : 107,248.34 = 53,192.28 : x
  2. Step 2: Convert to fraction form
    77,680.49/107,248.34 = 53,192.28/x
  3. Step 3: Cross multiply
    77,680.49x = 107,248.34 × 53,192.28
  4. Step 4: Simplify right side
    77,680.49x = 5,704,783,867.04
  5. Step 5: Solve for x
    x = 5,704,783,867.04/77,680.49
  6. Step 6: Final answer
    x = 73,439.08

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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.