Home / 53,711.34-80,567.04-20,423.72

Finding the Fourth Proportional to 53,711.34, 80,567.04 and 20,423.72

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Solution

The fourth proportional to 53,711.34, 80,567.04 and 20,423.72 is: 30,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,711.34 : 80,567.04 = 20,423.72 : x
  2. Step 2: Convert to fraction form
    53,711.34/80,567.04 = 20,423.72/x
  3. Step 3: Cross multiply
    53,711.34x = 80,567.04 × 20,423.72
  4. Step 4: Simplify right side
    53,711.34x = 1,645,478,666.19
  5. Step 5: Solve for x
    x = 1,645,478,666.19/53,711.34
  6. Step 6: Final answer
    x = 30,635.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.