Home / 45,781.50-63,136.29-31,415.99

Finding the Fourth Proportional to 45,781.50, 63,136.29 and 31,415.99

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Solution

The fourth proportional to 45,781.50, 63,136.29 and 31,415.99 is: 43,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,781.50 : 63,136.29 = 31,415.99 : x
  2. Step 2: Convert to fraction form
    45,781.50/63,136.29 = 31,415.99/x
  3. Step 3: Cross multiply
    45,781.50x = 63,136.29 × 31,415.99
  4. Step 4: Simplify right side
    45,781.50x = 1,983,488,857.41
  5. Step 5: Solve for x
    x = 1,983,488,857.41/45,781.50
  6. Step 6: Final answer
    x = 43,325.11

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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.