Home / 88,738.88-122,488-51,038.40

Finding the Fourth Proportional to 88,738.88, 122,488 and 51,038.40

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Solution

The fourth proportional to 88,738.88, 122,488 and 51,038.40 is: 70,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,738.88 : 122,488 = 51,038.40 : x
  2. Step 2: Convert to fraction form
    88,738.88/122,488 = 51,038.40/x
  3. Step 3: Cross multiply
    88,738.88x = 122,488 × 51,038.40
  4. Step 4: Simplify right side
    88,738.88x = 6,251,591,539.20
  5. Step 5: Solve for x
    x = 6,251,591,539.20/88,738.88
  6. Step 6: Final answer
    x = 70,449.30

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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.