Home / 45,774.50-63,136.17-42,009.80

Finding the Fourth Proportional to 45,774.50, 63,136.17 and 42,009.80

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Solution

The fourth proportional to 45,774.50, 63,136.17 and 42,009.80 is: 57,943.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,774.50 : 63,136.17 = 42,009.80 : x
  2. Step 2: Convert to fraction form
    45,774.50/63,136.17 = 42,009.80/x
  3. Step 3: Cross multiply
    45,774.50x = 63,136.17 × 42,009.80
  4. Step 4: Simplify right side
    45,774.50x = 2,652,337,558.79
  5. Step 5: Solve for x
    x = 2,652,337,558.79/45,774.50
  6. Step 6: Final answer
    x = 57,943.57

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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.