Home / 78,210.57-107,873.25-51,343.27

Finding the Fourth Proportional to 78,210.57, 107,873.25 and 51,343.27

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Solution

The fourth proportional to 78,210.57, 107,873.25 and 51,343.27 is: 70,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,210.57 : 107,873.25 = 51,343.27 : x
  2. Step 2: Convert to fraction form
    78,210.57/107,873.25 = 51,343.27/x
  3. Step 3: Cross multiply
    78,210.57x = 107,873.25 × 51,343.27
  4. Step 4: Simplify right side
    78,210.57x = 5,538,565,727.91
  5. Step 5: Solve for x
    x = 5,538,565,727.91/78,210.57
  6. Step 6: Final answer
    x = 70,816.08

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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.