Home / 98,315.24-135,686.57-55,880.15

Finding the Fourth Proportional to 98,315.24, 135,686.57 and 55,880.15

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Solution

The fourth proportional to 98,315.24, 135,686.57 and 55,880.15 is: 77,121.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,315.24 : 135,686.57 = 55,880.15 : x
  2. Step 2: Convert to fraction form
    98,315.24/135,686.57 = 55,880.15/x
  3. Step 3: Cross multiply
    98,315.24x = 135,686.57 × 55,880.15
  4. Step 4: Simplify right side
    98,315.24x = 7,582,184,926.75
  5. Step 5: Solve for x
    x = 7,582,184,926.75/98,315.24
  6. Step 6: Final answer
    x = 77,121.16

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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.