Home / 55,420.91-76,480.94-31,547.58

Finding the Fourth Proportional to 55,420.91, 76,480.94 and 31,547.58

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Solution

The fourth proportional to 55,420.91, 76,480.94 and 31,547.58 is: 43,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,420.91 : 76,480.94 = 31,547.58 : x
  2. Step 2: Convert to fraction form
    55,420.91/76,480.94 = 31,547.58/x
  3. Step 3: Cross multiply
    55,420.91x = 76,480.94 × 31,547.58
  4. Step 4: Simplify right side
    55,420.91x = 2,412,788,415.39
  5. Step 5: Solve for x
    x = 2,412,788,415.39/55,420.91
  6. Step 6: Final answer
    x = 43,535.71

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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.