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Finding the Fourth Proportional to 52,543.36, 72,512.72 and 28,670.20

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Solution

The fourth proportional to 52,543.36, 72,512.72 and 28,670.20 is: 39,566.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,543.36 : 72,512.72 = 28,670.20 : x
  2. Step 2: Convert to fraction form
    52,543.36/72,512.72 = 28,670.20/x
  3. Step 3: Cross multiply
    52,543.36x = 72,512.72 × 28,670.20
  4. Step 4: Simplify right side
    52,543.36x = 2,078,954,375.71
  5. Step 5: Solve for x
    x = 2,078,954,375.71/52,543.36
  6. Step 6: Final answer
    x = 39,566.45

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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.