Home / 97,678.80-134,782.56-54,658.08

Finding the Fourth Proportional to 97,678.80, 134,782.56 and 54,658.08

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Solution

The fourth proportional to 97,678.80, 134,782.56 and 54,658.08 is: 75,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,678.80 : 134,782.56 = 54,658.08 : x
  2. Step 2: Convert to fraction form
    97,678.80/134,782.56 = 54,658.08/x
  3. Step 3: Cross multiply
    97,678.80x = 134,782.56 × 54,658.08
  4. Step 4: Simplify right side
    97,678.80x = 7,366,955,947.08
  5. Step 5: Solve for x
    x = 7,366,955,947.08/97,678.80
  6. Step 6: Final answer
    x = 75,420.21

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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.