Home / 77,145.48-106,455.76-43,148.08

Finding the Fourth Proportional to 77,145.48, 106,455.76 and 43,148.08

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Solution

The fourth proportional to 77,145.48, 106,455.76 and 43,148.08 is: 59,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,145.48 : 106,455.76 = 43,148.08 : x
  2. Step 2: Convert to fraction form
    77,145.48/106,455.76 = 43,148.08/x
  3. Step 3: Cross multiply
    77,145.48x = 106,455.76 × 43,148.08
  4. Step 4: Simplify right side
    77,145.48x = 4,593,361,648.94
  5. Step 5: Solve for x
    x = 4,593,361,648.94/77,145.48
  6. Step 6: Final answer
    x = 59,541.55

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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.