Home / 56,846.40-78,445.60-31,695.68

Finding the Fourth Proportional to 56,846.40, 78,445.60 and 31,695.68

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Solution

The fourth proportional to 56,846.40, 78,445.60 and 31,695.68 is: 43,738.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,846.40 : 78,445.60 = 31,695.68 : x
  2. Step 2: Convert to fraction form
    56,846.40/78,445.60 = 31,695.68/x
  3. Step 3: Cross multiply
    56,846.40x = 78,445.60 × 31,695.68
  4. Step 4: Simplify right side
    56,846.40x = 2,486,386,635.01
  5. Step 5: Solve for x
    x = 2,486,386,635.01/56,846.40
  6. Step 6: Final answer
    x = 43,738.68

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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.