Home / 56,261.13-77,640.17-31,110.63

Finding the Fourth Proportional to 56,261.13, 77,640.17 and 31,110.63

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Solution

The fourth proportional to 56,261.13, 77,640.17 and 31,110.63 is: 42,932.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,261.13 : 77,640.17 = 31,110.63 : x
  2. Step 2: Convert to fraction form
    56,261.13/77,640.17 = 31,110.63/x
  3. Step 3: Cross multiply
    56,261.13x = 77,640.17 × 31,110.63
  4. Step 4: Simplify right side
    56,261.13x = 2,415,434,446.45
  5. Step 5: Solve for x
    x = 2,415,434,446.45/56,261.13
  6. Step 6: Final answer
    x = 42,932.56

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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.