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Finding the Fourth Proportional to 75,272.51, 112,927.75 and 53,129.13

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Solution

The fourth proportional to 75,272.51, 112,927.75 and 53,129.13 is: 79,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,272.51 : 112,927.75 = 53,129.13 : x
  2. Step 2: Convert to fraction form
    75,272.51/112,927.75 = 53,129.13/x
  3. Step 3: Cross multiply
    75,272.51x = 112,927.75 × 53,129.13
  4. Step 4: Simplify right side
    75,272.51x = 5,999,753,110.36
  5. Step 5: Solve for x
    x = 5,999,753,110.36/75,272.51
  6. Step 6: Final answer
    x = 79,707.10

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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.