Home / 51,567.27-71,141.55-31,416.78

Finding the Fourth Proportional to 51,567.27, 71,141.55 and 31,416.78

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Solution

The fourth proportional to 51,567.27, 71,141.55 and 31,416.78 is: 43,342.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,567.27 : 71,141.55 = 31,416.78 : x
  2. Step 2: Convert to fraction form
    51,567.27/71,141.55 = 31,416.78/x
  3. Step 3: Cross multiply
    51,567.27x = 71,141.55 × 31,416.78
  4. Step 4: Simplify right side
    51,567.27x = 2,235,038,425.21
  5. Step 5: Solve for x
    x = 2,235,038,425.21/51,567.27
  6. Step 6: Final answer
    x = 43,342.19

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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.