Home / 42,686.54-63,977.96-30,210.21

Finding the Fourth Proportional to 42,686.54, 63,977.96 and 30,210.21

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Solution

The fourth proportional to 42,686.54, 63,977.96 and 30,210.21 is: 45,278.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,686.54 : 63,977.96 = 30,210.21 : x
  2. Step 2: Convert to fraction form
    42,686.54/63,977.96 = 30,210.21/x
  3. Step 3: Cross multiply
    42,686.54x = 63,977.96 × 30,210.21
  4. Step 4: Simplify right side
    42,686.54x = 1,932,787,606.97
  5. Step 5: Solve for x
    x = 1,932,787,606.97/42,686.54
  6. Step 6: Final answer
    x = 45,278.62

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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.