Home / 63,118.36-94,611.09-20,987.13

Finding the Fourth Proportional to 63,118.36, 94,611.09 and 20,987.13

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Solution

The fourth proportional to 63,118.36, 94,611.09 and 20,987.13 is: 31,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,118.36 : 94,611.09 = 20,987.13 : x
  2. Step 2: Convert to fraction form
    63,118.36/94,611.09 = 20,987.13/x
  3. Step 3: Cross multiply
    63,118.36x = 94,611.09 × 20,987.13
  4. Step 4: Simplify right side
    63,118.36x = 1,985,614,762.43
  5. Step 5: Solve for x
    x = 1,985,614,762.43/63,118.36
  6. Step 6: Final answer
    x = 31,458.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.