Home / 77,060.39-106,342.71-54,122.45

Finding the Fourth Proportional to 77,060.39, 106,342.71 and 54,122.45

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Solution

The fourth proportional to 77,060.39, 106,342.71 and 54,122.45 is: 74,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,060.39 : 106,342.71 = 54,122.45 : x
  2. Step 2: Convert to fraction form
    77,060.39/106,342.71 = 54,122.45/x
  3. Step 3: Cross multiply
    77,060.39x = 106,342.71 × 54,122.45
  4. Step 4: Simplify right side
    77,060.39x = 5,755,528,004.84
  5. Step 5: Solve for x
    x = 5,755,528,004.84/77,060.39
  6. Step 6: Final answer
    x = 74,688.54

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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.