Home / 45,774.30-63,135.90-42,009.66

Finding the Fourth Proportional to 45,774.30, 63,135.90 and 42,009.66

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Solution

The fourth proportional to 45,774.30, 63,135.90 and 42,009.66 is: 57,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,774.30 : 63,135.90 = 42,009.66 : x
  2. Step 2: Convert to fraction form
    45,774.30/63,135.90 = 42,009.66/x
  3. Step 3: Cross multiply
    45,774.30x = 63,135.90 × 42,009.66
  4. Step 4: Simplify right side
    45,774.30x = 2,652,317,692.79
  5. Step 5: Solve for x
    x = 2,652,317,692.79/45,774.30
  6. Step 6: Final answer
    x = 57,943.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.