Home / 60,290.25-90,457.31-20,851.35

Finding the Fourth Proportional to 60,290.25, 90,457.31 and 20,851.35

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Solution

The fourth proportional to 60,290.25, 90,457.31 and 20,851.35 is: 31,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,290.25 : 90,457.31 = 20,851.35 : x
  2. Step 2: Convert to fraction form
    60,290.25/90,457.31 = 20,851.35/x
  3. Step 3: Cross multiply
    60,290.25x = 90,457.31 × 20,851.35
  4. Step 4: Simplify right side
    60,290.25x = 1,886,157,030.87
  5. Step 5: Solve for x
    x = 1,886,157,030.87/60,290.25
  6. Step 6: Final answer
    x = 31,284.61

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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.