Home / 53,614.04-80,390.27-20,312.88

Finding the Fourth Proportional to 53,614.04, 80,390.27 and 20,312.88

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Solution

The fourth proportional to 53,614.04, 80,390.27 and 20,312.88 is: 30,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,614.04 : 80,390.27 = 20,312.88 : x
  2. Step 2: Convert to fraction form
    53,614.04/80,390.27 = 20,312.88/x
  3. Step 3: Cross multiply
    53,614.04x = 80,390.27 × 20,312.88
  4. Step 4: Simplify right side
    53,614.04x = 1,632,957,657.00
  5. Step 5: Solve for x
    x = 1,632,957,657.00/53,614.04
  6. Step 6: Final answer
    x = 30,457.65

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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.