Home / 71,225.36-98,290.50-39,393.08

Finding the Fourth Proportional to 71,225.36, 98,290.50 and 39,393.08

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Solution

The fourth proportional to 71,225.36, 98,290.50 and 39,393.08 is: 54,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,225.36 : 98,290.50 = 39,393.08 : x
  2. Step 2: Convert to fraction form
    71,225.36/98,290.50 = 39,393.08/x
  3. Step 3: Cross multiply
    71,225.36x = 98,290.50 × 39,393.08
  4. Step 4: Simplify right side
    71,225.36x = 3,871,965,529.74
  5. Step 5: Solve for x
    x = 3,871,965,529.74/71,225.36
  6. Step 6: Final answer
    x = 54,362.18

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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.