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Finding the Fourth Proportional to 51,063.60, 76,657.80 and 28,892.40

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Solution

The fourth proportional to 51,063.60, 76,657.80 and 28,892.40 is: 43,373.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,063.60 : 76,657.80 = 28,892.40 : x
  2. Step 2: Convert to fraction form
    51,063.60/76,657.80 = 28,892.40/x
  3. Step 3: Cross multiply
    51,063.60x = 76,657.80 × 28,892.40
  4. Step 4: Simplify right side
    51,063.60x = 2,214,827,820.72
  5. Step 5: Solve for x
    x = 2,214,827,820.72/51,063.60
  6. Step 6: Final answer
    x = 43,373.91

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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.