Home / 98,515.64-135,958.50-56,074.18

Finding the Fourth Proportional to 98,515.64, 135,958.50 and 56,074.18

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Solution

The fourth proportional to 98,515.64, 135,958.50 and 56,074.18 is: 77,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,515.64 : 135,958.50 = 56,074.18 : x
  2. Step 2: Convert to fraction form
    98,515.64/135,958.50 = 56,074.18/x
  3. Step 3: Cross multiply
    98,515.64x = 135,958.50 × 56,074.18
  4. Step 4: Simplify right side
    98,515.64x = 7,623,761,401.53
  5. Step 5: Solve for x
    x = 7,623,761,401.53/98,515.64
  6. Step 6: Final answer
    x = 77,386.31

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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.