Home / 77,564.10-107,040.99-43,578.63

Finding the Fourth Proportional to 77,564.10, 107,040.99 and 43,578.63

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Solution

The fourth proportional to 77,564.10, 107,040.99 and 43,578.63 is: 60,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,564.10 : 107,040.99 = 43,578.63 : x
  2. Step 2: Convert to fraction form
    77,564.10/107,040.99 = 43,578.63/x
  3. Step 3: Cross multiply
    77,564.10x = 107,040.99 × 43,578.63
  4. Step 4: Simplify right side
    77,564.10x = 4,664,699,698.04
  5. Step 5: Solve for x
    x = 4,664,699,698.04/77,564.10
  6. Step 6: Final answer
    x = 60,139.93

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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.