Home / 42,750.11-64,138.14-30,294.23

Finding the Fourth Proportional to 42,750.11, 64,138.14 and 30,294.23

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Solution

The fourth proportional to 42,750.11, 64,138.14 and 30,294.23 is: 45,450.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,750.11 : 64,138.14 = 30,294.23 : x
  2. Step 2: Convert to fraction form
    42,750.11/64,138.14 = 30,294.23/x
  3. Step 3: Cross multiply
    42,750.11x = 64,138.14 × 30,294.23
  4. Step 4: Simplify right side
    42,750.11x = 1,943,015,244.24
  5. Step 5: Solve for x
    x = 1,943,015,244.24/42,750.11
  6. Step 6: Final answer
    x = 45,450.53

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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.