Home / 77,587.09-107,082.35-45,759.49

Finding the Fourth Proportional to 77,587.09, 107,082.35 and 45,759.49

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Solution

The fourth proportional to 77,587.09, 107,082.35 and 45,759.49 is: 63,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,587.09 : 107,082.35 = 45,759.49 : x
  2. Step 2: Convert to fraction form
    77,587.09/107,082.35 = 45,759.49/x
  3. Step 3: Cross multiply
    77,587.09x = 107,082.35 × 45,759.49
  4. Step 4: Simplify right side
    77,587.09x = 4,900,033,724.00
  5. Step 5: Solve for x
    x = 4,900,033,724.00/77,587.09
  6. Step 6: Final answer
    x = 63,155.27

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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.