Home / 77,607.10-107,106.68-43,155.28

Finding the Fourth Proportional to 77,607.10, 107,106.68 and 43,155.28

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Solution

The fourth proportional to 77,607.10, 107,106.68 and 43,155.28 is: 59,559.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,607.10 : 107,106.68 = 43,155.28 : x
  2. Step 2: Convert to fraction form
    77,607.10/107,106.68 = 43,155.28/x
  3. Step 3: Cross multiply
    77,607.10x = 107,106.68 × 43,155.28
  4. Step 4: Simplify right side
    77,607.10x = 4,622,218,229.74
  5. Step 5: Solve for x
    x = 4,622,218,229.74/77,607.10
  6. Step 6: Final answer
    x = 59,559.22

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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.