Home / 56,133.79-77,463.46-30,640.66

Finding the Fourth Proportional to 56,133.79, 77,463.46 and 30,640.66

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Solution

The fourth proportional to 56,133.79, 77,463.46 and 30,640.66 is: 42,283.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,133.79 : 77,463.46 = 30,640.66 : x
  2. Step 2: Convert to fraction form
    56,133.79/77,463.46 = 30,640.66/x
  3. Step 3: Cross multiply
    56,133.79x = 77,463.46 × 30,640.66
  4. Step 4: Simplify right side
    56,133.79x = 2,373,531,540.28
  5. Step 5: Solve for x
    x = 2,373,531,540.28/56,133.79
  6. Step 6: Final answer
    x = 42,283.47

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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.