Home / 98,518.01-135,955.71-56,079.26

Finding the Fourth Proportional to 98,518.01, 135,955.71 and 56,079.26

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Solution

The fourth proportional to 98,518.01, 135,955.71 and 56,079.26 is: 77,389.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,518.01 : 135,955.71 = 56,079.26 : x
  2. Step 2: Convert to fraction form
    98,518.01/135,955.71 = 56,079.26/x
  3. Step 3: Cross multiply
    98,518.01x = 135,955.71 × 56,079.26
  4. Step 4: Simplify right side
    98,518.01x = 7,624,295,609.57
  5. Step 5: Solve for x
    x = 7,624,295,609.57/98,518.01
  6. Step 6: Final answer
    x = 77,389.87

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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.