Home / 98,519.48-135,957.78-56,080.76

Finding the Fourth Proportional to 98,519.48, 135,957.78 and 56,080.76

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Solution

The fourth proportional to 98,519.48, 135,957.78 and 56,080.76 is: 77,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,519.48 : 135,957.78 = 56,080.76 : x
  2. Step 2: Convert to fraction form
    98,519.48/135,957.78 = 56,080.76/x
  3. Step 3: Cross multiply
    98,519.48x = 135,957.78 × 56,080.76
  4. Step 4: Simplify right side
    98,519.48x = 7,624,615,630.31
  5. Step 5: Solve for x
    x = 7,624,615,630.31/98,519.48
  6. Step 6: Final answer
    x = 77,391.96

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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.