Home / 55,443.18-76,511.64-31,569.78

Finding the Fourth Proportional to 55,443.18, 76,511.64 and 31,569.78

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Solution

The fourth proportional to 55,443.18, 76,511.64 and 31,569.78 is: 43,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,443.18 : 76,511.64 = 31,569.78 : x
  2. Step 2: Convert to fraction form
    55,443.18/76,511.64 = 31,569.78/x
  3. Step 3: Cross multiply
    55,443.18x = 76,511.64 × 31,569.78
  4. Step 4: Simplify right side
    55,443.18x = 2,415,455,642.24
  5. Step 5: Solve for x
    x = 2,415,455,642.24/55,443.18
  6. Step 6: Final answer
    x = 43,566.33

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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.