Home / 90,615.11-125,039.72-52,911.23

Finding the Fourth Proportional to 90,615.11, 125,039.72 and 52,911.23

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Solution

The fourth proportional to 90,615.11, 125,039.72 and 52,911.23 is: 73,012.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,615.11 : 125,039.72 = 52,911.23 : x
  2. Step 2: Convert to fraction form
    90,615.11/125,039.72 = 52,911.23/x
  3. Step 3: Cross multiply
    90,615.11x = 125,039.72 × 52,911.23
  4. Step 4: Simplify right side
    90,615.11x = 6,616,005,119.50
  5. Step 5: Solve for x
    x = 6,616,005,119.50/90,615.11
  6. Step 6: Final answer
    x = 73,012.16

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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.