Home / 75,272.48-112,927.70-53,129.10

Finding the Fourth Proportional to 75,272.48, 112,927.70 and 53,129.10

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Solution

The fourth proportional to 75,272.48, 112,927.70 and 53,129.10 is: 79,707.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,272.48 : 112,927.70 = 53,129.10 : x
  2. Step 2: Convert to fraction form
    75,272.48/112,927.70 = 53,129.10/x
  3. Step 3: Cross multiply
    75,272.48x = 112,927.70 × 53,129.10
  4. Step 4: Simplify right side
    75,272.48x = 5,999,747,066.07
  5. Step 5: Solve for x
    x = 5,999,747,066.07/75,272.48
  6. Step 6: Final answer
    x = 79,707.05

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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.