Home / 42,976.74-64,402.80-30,521.16

Finding the Fourth Proportional to 42,976.74, 64,402.80 and 30,521.16

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Solution

The fourth proportional to 42,976.74, 64,402.80 and 30,521.16 is: 45,737.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,976.74 : 64,402.80 = 30,521.16 : x
  2. Step 2: Convert to fraction form
    42,976.74/64,402.80 = 30,521.16/x
  3. Step 3: Cross multiply
    42,976.74x = 64,402.80 × 30,521.16
  4. Step 4: Simplify right side
    42,976.74x = 1,965,648,163.25
  5. Step 5: Solve for x
    x = 1,965,648,163.25/42,976.74
  6. Step 6: Final answer
    x = 45,737.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.