Home / 55,111.18-75,918.45-39,959.32

Finding the Fourth Proportional to 55,111.18, 75,918.45 and 39,959.32

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Solution

The fourth proportional to 55,111.18, 75,918.45 and 39,959.32 is: 55,045.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,111.18 : 75,918.45 = 39,959.32 : x
  2. Step 2: Convert to fraction form
    55,111.18/75,918.45 = 39,959.32/x
  3. Step 3: Cross multiply
    55,111.18x = 75,918.45 × 39,959.32
  4. Step 4: Simplify right side
    55,111.18x = 3,033,649,637.45
  5. Step 5: Solve for x
    x = 3,033,649,637.45/55,111.18
  6. Step 6: Final answer
    x = 55,045.99

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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.