Home / 75,521.60-104,212.32-57,628.16

Finding the Fourth Proportional to 75,521.60, 104,212.32 and 57,628.16

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Solution

The fourth proportional to 75,521.60, 104,212.32 and 57,628.16 is: 79,521.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,521.60 : 104,212.32 = 57,628.16 : x
  2. Step 2: Convert to fraction form
    75,521.60/104,212.32 = 57,628.16/x
  3. Step 3: Cross multiply
    75,521.60x = 104,212.32 × 57,628.16
  4. Step 4: Simplify right side
    75,521.60x = 6,005,564,250.93
  5. Step 5: Solve for x
    x = 6,005,564,250.93/75,521.60
  6. Step 6: Final answer
    x = 79,521.15

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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.