Home / 51,728.32-77,439.39-31,943.26

Finding the Fourth Proportional to 51,728.32, 77,439.39 and 31,943.26

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Solution

The fourth proportional to 51,728.32, 77,439.39 and 31,943.26 is: 47,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,728.32 : 77,439.39 = 31,943.26 : x
  2. Step 2: Convert to fraction form
    51,728.32/77,439.39 = 31,943.26/x
  3. Step 3: Cross multiply
    51,728.32x = 77,439.39 × 31,943.26
  4. Step 4: Simplify right side
    51,728.32x = 2,473,666,569.01
  5. Step 5: Solve for x
    x = 2,473,666,569.01/51,728.32
  6. Step 6: Final answer
    x = 47,820.35

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1.5x scale

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.