Home / 55,643.90-76,823.62-38,642.69

Finding the Fourth Proportional to 55,643.90, 76,823.62 and 38,642.69

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Solution

The fourth proportional to 55,643.90, 76,823.62 and 38,642.69 is: 53,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,643.90 : 76,823.62 = 38,642.69 : x
  2. Step 2: Convert to fraction form
    55,643.90/76,823.62 = 38,642.69/x
  3. Step 3: Cross multiply
    55,643.90x = 76,823.62 × 38,642.69
  4. Step 4: Simplify right side
    55,643.90x = 2,968,671,427.79
  5. Step 5: Solve for x
    x = 2,968,671,427.79/55,643.90
  6. Step 6: Final answer
    x = 53,351.25

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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.