Home / 42,734.65-64,114.92-30,278.77

Finding the Fourth Proportional to 42,734.65, 64,114.92 and 30,278.77

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Solution

The fourth proportional to 42,734.65, 64,114.92 and 30,278.77 is: 45,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,734.65 : 64,114.92 = 30,278.77 : x
  2. Step 2: Convert to fraction form
    42,734.65/64,114.92 = 30,278.77/x
  3. Step 3: Cross multiply
    42,734.65x = 64,114.92 × 30,278.77
  4. Step 4: Simplify right side
    42,734.65x = 1,941,320,916.25
  5. Step 5: Solve for x
    x = 1,941,320,916.25/42,734.65
  6. Step 6: Final answer
    x = 45,427.33

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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.