Home / 55,578.30-76,648.36-40,506.09

Finding the Fourth Proportional to 55,578.30, 76,648.36 and 40,506.09

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Solution

The fourth proportional to 55,578.30, 76,648.36 and 40,506.09 is: 55,862.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,578.30 : 76,648.36 = 40,506.09 : x
  2. Step 2: Convert to fraction form
    55,578.30/76,648.36 = 40,506.09/x
  3. Step 3: Cross multiply
    55,578.30x = 76,648.36 × 40,506.09
  4. Step 4: Simplify right side
    55,578.30x = 3,104,725,368.51
  5. Step 5: Solve for x
    x = 3,104,725,368.51/55,578.30
  6. Step 6: Final answer
    x = 55,862.19

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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.