Home / 77,270.42-106,635.54-43,278.82

Finding the Fourth Proportional to 77,270.42, 106,635.54 and 43,278.82

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Solution

The fourth proportional to 77,270.42, 106,635.54 and 43,278.82 is: 59,726.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,270.42 : 106,635.54 = 43,278.82 : x
  2. Step 2: Convert to fraction form
    77,270.42/106,635.54 = 43,278.82/x
  3. Step 3: Cross multiply
    77,270.42x = 106,635.54 × 43,278.82
  4. Step 4: Simplify right side
    77,270.42x = 4,615,060,341.26
  5. Step 5: Solve for x
    x = 4,615,060,341.26/77,270.42
  6. Step 6: Final answer
    x = 59,726.09

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1.5x scale

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.