Home / 77,746.41-107,288.37-43,290.90

Finding the Fourth Proportional to 77,746.41, 107,288.37 and 43,290.90

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Solution

The fourth proportional to 77,746.41, 107,288.37 and 43,290.90 is: 59,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,746.41 : 107,288.37 = 43,290.90 : x
  2. Step 2: Convert to fraction form
    77,746.41/107,288.37 = 43,290.90/x
  3. Step 3: Cross multiply
    77,746.41x = 107,288.37 × 43,290.90
  4. Step 4: Simplify right side
    77,746.41x = 4,644,610,096.83
  5. Step 5: Solve for x
    x = 4,644,610,096.83/77,746.41
  6. Step 6: Final answer
    x = 59,740.51

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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.