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Finding the Fourth Proportional to 75,110.51, 112,658.47 and 19,706.51

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Solution

The fourth proportional to 75,110.51, 112,658.47 and 19,706.51 is: 29,557.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,110.51 : 112,658.47 = 19,706.51 : x
  2. Step 2: Convert to fraction form
    75,110.51/112,658.47 = 19,706.51/x
  3. Step 3: Cross multiply
    75,110.51x = 112,658.47 × 19,706.51
  4. Step 4: Simplify right side
    75,110.51x = 2,220,105,498.02
  5. Step 5: Solve for x
    x = 2,220,105,498.02/75,110.51
  6. Step 6: Final answer
    x = 29,557.85

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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.