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Finding the Fourth Proportional to 51,609.60, 77,420.40 and 16,552.80

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Solution

The fourth proportional to 51,609.60, 77,420.40 and 16,552.80 is: 24,831.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,609.60 : 77,420.40 = 16,552.80 : x
  2. Step 2: Convert to fraction form
    51,609.60/77,420.40 = 16,552.80/x
  3. Step 3: Cross multiply
    51,609.60x = 77,420.40 × 16,552.80
  4. Step 4: Simplify right side
    51,609.60x = 1,281,524,397.12
  5. Step 5: Solve for x
    x = 1,281,524,397.12/51,609.60
  6. Step 6: Final answer
    x = 24,831.12

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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.