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Finding the Fourth Proportional to 52,714.80, 79,031.70 and 26,438.40

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Solution

The fourth proportional to 52,714.80, 79,031.70 and 26,438.40 is: 39,637.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,714.80 : 79,031.70 = 26,438.40 : x
  2. Step 2: Convert to fraction form
    52,714.80/79,031.70 = 26,438.40/x
  3. Step 3: Cross multiply
    52,714.80x = 79,031.70 × 26,438.40
  4. Step 4: Simplify right side
    52,714.80x = 2,089,471,697.28
  5. Step 5: Solve for x
    x = 2,089,471,697.28/52,714.80
  6. Step 6: Final answer
    x = 39,637.29

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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.