Home / 55,438.80-76,510.08-31,572.96

Finding the Fourth Proportional to 55,438.80, 76,510.08 and 31,572.96

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Solution

The fourth proportional to 55,438.80, 76,510.08 and 31,572.96 is: 43,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,438.80 : 76,510.08 = 31,572.96 : x
  2. Step 2: Convert to fraction form
    55,438.80/76,510.08 = 31,572.96/x
  3. Step 3: Cross multiply
    55,438.80x = 76,510.08 × 31,572.96
  4. Step 4: Simplify right side
    55,438.80x = 2,415,649,695.44
  5. Step 5: Solve for x
    x = 2,415,649,695.44/55,438.80
  6. Step 6: Final answer
    x = 43,573.27

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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.