Home / 42,682.10-64,023.15-18,054.90

Finding the Fourth Proportional to 42,682.10, 64,023.15 and 18,054.90

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Solution

The fourth proportional to 42,682.10, 64,023.15 and 18,054.90 is: 27,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,682.10 : 64,023.15 = 18,054.90 : x
  2. Step 2: Convert to fraction form
    42,682.10/64,023.15 = 18,054.90/x
  3. Step 3: Cross multiply
    42,682.10x = 64,023.15 × 18,054.90
  4. Step 4: Simplify right side
    42,682.10x = 1,155,931,570.94
  5. Step 5: Solve for x
    x = 1,155,931,570.94/42,682.10
  6. Step 6: Final answer
    x = 27,082.35

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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.