Home / 56,906.96-78,528.25-31,412.70

Finding the Fourth Proportional to 56,906.96, 78,528.25 and 31,412.70

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Solution

The fourth proportional to 56,906.96, 78,528.25 and 31,412.70 is: 43,347.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,906.96 : 78,528.25 = 31,412.70 : x
  2. Step 2: Convert to fraction form
    56,906.96/78,528.25 = 31,412.70/x
  3. Step 3: Cross multiply
    56,906.96x = 78,528.25 × 31,412.70
  4. Step 4: Simplify right side
    56,906.96x = 2,466,784,398.04
  5. Step 5: Solve for x
    x = 2,466,784,398.04/56,906.96
  6. Step 6: Final answer
    x = 43,347.67

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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.