Home / 88,126.40-121,615.38-47,840.54

Finding the Fourth Proportional to 88,126.40, 121,615.38 and 47,840.54

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Solution

The fourth proportional to 88,126.40, 121,615.38 and 47,840.54 is: 66,020.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,126.40 : 121,615.38 = 47,840.54 : x
  2. Step 2: Convert to fraction form
    88,126.40/121,615.38 = 47,840.54/x
  3. Step 3: Cross multiply
    88,126.40x = 121,615.38 × 47,840.54
  4. Step 4: Simplify right side
    88,126.40x = 5,818,145,451.51
  5. Step 5: Solve for x
    x = 5,818,145,451.51/88,126.40
  6. Step 6: Final answer
    x = 66,020.46

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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.