Home / 48,521-66,965.46-31,763.72

Finding the Fourth Proportional to 48,521, 66,965.46 and 31,763.72

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Solution

The fourth proportional to 48,521, 66,965.46 and 31,763.72 is: 43,838.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,521 : 66,965.46 = 31,763.72 : x
  2. Step 2: Convert to fraction form
    48,521/66,965.46 = 31,763.72/x
  3. Step 3: Cross multiply
    48,521x = 66,965.46 × 31,763.72
  4. Step 4: Simplify right side
    48,521x = 2,127,072,121.11
  5. Step 5: Solve for x
    x = 2,127,072,121.11/48,521
  6. Step 6: Final answer
    x = 43,838.18

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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.