Home / 56,867.36-78,476.76-31,716.84

Finding the Fourth Proportional to 56,867.36, 78,476.76 and 31,716.84

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Solution

The fourth proportional to 56,867.36, 78,476.76 and 31,716.84 is: 43,769.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,867.36 : 78,476.76 = 31,716.84 : x
  2. Step 2: Convert to fraction form
    56,867.36/78,476.76 = 31,716.84/x
  3. Step 3: Cross multiply
    56,867.36x = 78,476.76 × 31,716.84
  4. Step 4: Simplify right side
    56,867.36x = 2,489,034,840.64
  5. Step 5: Solve for x
    x = 2,489,034,840.64/56,867.36
  6. Step 6: Final answer
    x = 43,769.13

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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.