Home / 53,290.47-73,543.23-30,636.80

Finding the Fourth Proportional to 53,290.47, 73,543.23 and 30,636.80

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Solution

The fourth proportional to 53,290.47, 73,543.23 and 30,636.80 is: 42,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,290.47 : 73,543.23 = 30,636.80 : x
  2. Step 2: Convert to fraction form
    53,290.47/73,543.23 = 30,636.80/x
  3. Step 3: Cross multiply
    53,290.47x = 73,543.23 × 30,636.80
  4. Step 4: Simplify right side
    53,290.47x = 2,253,128,861.15
  5. Step 5: Solve for x
    x = 2,253,128,861.15/53,290.47
  6. Step 6: Final answer
    x = 42,280.15

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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.