Home / 42,518.21-63,777.30-30,187.11

Finding the Fourth Proportional to 42,518.21, 63,777.30 and 30,187.11

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Solution

The fourth proportional to 42,518.21, 63,777.30 and 30,187.11 is: 45,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,518.21 : 63,777.30 = 30,187.11 : x
  2. Step 2: Convert to fraction form
    42,518.21/63,777.30 = 30,187.11/x
  3. Step 3: Cross multiply
    42,518.21x = 63,777.30 × 30,187.11
  4. Step 4: Simplify right side
    42,518.21x = 1,925,252,496.57
  5. Step 5: Solve for x
    x = 1,925,252,496.57/42,518.21
  6. Step 6: Final answer
    x = 45,280.66

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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.