Home / 42,711.22-64,080.53-20,526.20

Finding the Fourth Proportional to 42,711.22, 64,080.53 and 20,526.20

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Solution

The fourth proportional to 42,711.22, 64,080.53 and 20,526.20 is: 30,795.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,711.22 : 64,080.53 = 20,526.20 : x
  2. Step 2: Convert to fraction form
    42,711.22/64,080.53 = 20,526.20/x
  3. Step 3: Cross multiply
    42,711.22x = 64,080.53 × 20,526.20
  4. Step 4: Simplify right side
    42,711.22x = 1,315,329,774.89
  5. Step 5: Solve for x
    x = 1,315,329,774.89/42,711.22
  6. Step 6: Final answer
    x = 30,795.88

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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.