Home / 77,600.40-107,085.72-47,436.24

Finding the Fourth Proportional to 77,600.40, 107,085.72 and 47,436.24

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Solution

The fourth proportional to 77,600.40, 107,085.72 and 47,436.24 is: 65,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,600.40 : 107,085.72 = 47,436.24 : x
  2. Step 2: Convert to fraction form
    77,600.40/107,085.72 = 47,436.24/x
  3. Step 3: Cross multiply
    77,600.40x = 107,085.72 × 47,436.24
  4. Step 4: Simplify right side
    77,600.40x = 5,079,743,914.49
  5. Step 5: Solve for x
    x = 5,079,743,914.49/77,600.40
  6. Step 6: Final answer
    x = 65,460.28

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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.