Home / 56,920.92-78,558.30-31,775.64

Finding the Fourth Proportional to 56,920.92, 78,558.30 and 31,775.64

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Solution

The fourth proportional to 56,920.92, 78,558.30 and 31,775.64 is: 43,854.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920.92 : 78,558.30 = 31,775.64 : x
  2. Step 2: Convert to fraction form
    56,920.92/78,558.30 = 31,775.64/x
  3. Step 3: Cross multiply
    56,920.92x = 78,558.30 × 31,775.64
  4. Step 4: Simplify right side
    56,920.92x = 2,496,240,259.81
  5. Step 5: Solve for x
    x = 2,496,240,259.81/56,920.92
  6. Step 6: Final answer
    x = 43,854.53

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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.