Home / 50,740.79-70,020.86-28,080.72

Finding the Fourth Proportional to 50,740.79, 70,020.86 and 28,080.72

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Solution

The fourth proportional to 50,740.79, 70,020.86 and 28,080.72 is: 38,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,740.79 : 70,020.86 = 28,080.72 : x
  2. Step 2: Convert to fraction form
    50,740.79/70,020.86 = 28,080.72/x
  3. Step 3: Cross multiply
    50,740.79x = 70,020.86 × 28,080.72
  4. Step 4: Simplify right side
    50,740.79x = 1,966,236,023.42
  5. Step 5: Solve for x
    x = 1,966,236,023.42/50,740.79
  6. Step 6: Final answer
    x = 38,750.60

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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.