Home / 75,345.26-103,776.80-56,163.58

Finding the Fourth Proportional to 75,345.26, 103,776.80 and 56,163.58

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Solution

The fourth proportional to 75,345.26, 103,776.80 and 56,163.58 is: 77,356.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,345.26 : 103,776.80 = 56,163.58 : x
  2. Step 2: Convert to fraction form
    75,345.26/103,776.80 = 56,163.58/x
  3. Step 3: Cross multiply
    75,345.26x = 103,776.80 × 56,163.58
  4. Step 4: Simplify right side
    75,345.26x = 5,828,476,068.68
  5. Step 5: Solve for x
    x = 5,828,476,068.68/75,345.26
  6. Step 6: Final answer
    x = 77,356.91

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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.