Home / 77,934.08-107,548.67-42,124.01

Finding the Fourth Proportional to 77,934.08, 107,548.67 and 42,124.01

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Solution

The fourth proportional to 77,934.08, 107,548.67 and 42,124.01 is: 58,130.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,934.08 : 107,548.67 = 42,124.01 : x
  2. Step 2: Convert to fraction form
    77,934.08/107,548.67 = 42,124.01/x
  3. Step 3: Cross multiply
    77,934.08x = 107,548.67 × 42,124.01
  4. Step 4: Simplify right side
    77,934.08x = 4,530,380,502.20
  5. Step 5: Solve for x
    x = 4,530,380,502.20/77,934.08
  6. Step 6: Final answer
    x = 58,130.93

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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.