Home / 98,515.98-135,952.20-56,074.50

Finding the Fourth Proportional to 98,515.98, 135,952.20 and 56,074.50

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Solution

The fourth proportional to 98,515.98, 135,952.20 and 56,074.50 is: 77,382.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,515.98 : 135,952.20 = 56,074.50 : x
  2. Step 2: Convert to fraction form
    98,515.98/135,952.20 = 56,074.50/x
  3. Step 3: Cross multiply
    98,515.98x = 135,952.20 × 56,074.50
  4. Step 4: Simplify right side
    98,515.98x = 7,623,451,638.90
  5. Step 5: Solve for x
    x = 7,623,451,638.90/98,515.98
  6. Step 6: Final answer
    x = 77,382.89

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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.