Home / 70,355.16-97,099.38-40,133.55

Finding the Fourth Proportional to 70,355.16, 97,099.38 and 40,133.55

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Solution

The fourth proportional to 70,355.16, 97,099.38 and 40,133.55 is: 55,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,355.16 : 97,099.38 = 40,133.55 : x
  2. Step 2: Convert to fraction form
    70,355.16/97,099.38 = 40,133.55/x
  3. Step 3: Cross multiply
    70,355.16x = 97,099.38 × 40,133.55
  4. Step 4: Simplify right side
    70,355.16x = 3,896,942,822.20
  5. Step 5: Solve for x
    x = 3,896,942,822.20/70,355.16
  6. Step 6: Final answer
    x = 55,389.58

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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.