Home / 56,906.28-78,530.70-31,412.67

Finding the Fourth Proportional to 56,906.28, 78,530.70 and 31,412.67

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Solution

The fourth proportional to 56,906.28, 78,530.70 and 31,412.67 is: 43,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,906.28 : 78,530.70 = 31,412.67 : x
  2. Step 2: Convert to fraction form
    56,906.28/78,530.70 = 31,412.67/x
  3. Step 3: Cross multiply
    56,906.28x = 78,530.70 × 31,412.67
  4. Step 4: Simplify right side
    56,906.28x = 2,466,858,963.97
  5. Step 5: Solve for x
    x = 2,466,858,963.97/56,906.28
  6. Step 6: Final answer
    x = 43,349.50

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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.