Home / 77,049.41-106,130.43-54,348.50

Finding the Fourth Proportional to 77,049.41, 106,130.43 and 54,348.50

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Solution

The fourth proportional to 77,049.41, 106,130.43 and 54,348.50 is: 74,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,049.41 : 106,130.43 = 54,348.50 : x
  2. Step 2: Convert to fraction form
    77,049.41/106,130.43 = 54,348.50/x
  3. Step 3: Cross multiply
    77,049.41x = 106,130.43 × 54,348.50
  4. Step 4: Simplify right side
    77,049.41x = 5,768,029,940.18
  5. Step 5: Solve for x
    x = 5,768,029,940.18/77,049.41
  6. Step 6: Final answer
    x = 74,861.45

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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.