Home / 56,110.64-77,434.30-30,961.76

Finding the Fourth Proportional to 56,110.64, 77,434.30 and 30,961.76

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Solution

The fourth proportional to 56,110.64, 77,434.30 and 30,961.76 is: 42,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,110.64 : 77,434.30 = 30,961.76 : x
  2. Step 2: Convert to fraction form
    56,110.64/77,434.30 = 30,961.76/x
  3. Step 3: Cross multiply
    56,110.64x = 77,434.30 × 30,961.76
  4. Step 4: Simplify right side
    56,110.64x = 2,397,502,212.37
  5. Step 5: Solve for x
    x = 2,397,502,212.37/56,110.64
  6. Step 6: Final answer
    x = 42,728.12

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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.