Home / 70,365.36-97,111.98-40,158.12

Finding the Fourth Proportional to 70,365.36, 97,111.98 and 40,158.12

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Solution

The fourth proportional to 70,365.36, 97,111.98 and 40,158.12 is: 55,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,365.36 : 97,111.98 = 40,158.12 : x
  2. Step 2: Convert to fraction form
    70,365.36/97,111.98 = 40,158.12/x
  3. Step 3: Cross multiply
    70,365.36x = 97,111.98 × 40,158.12
  4. Step 4: Simplify right side
    70,365.36x = 3,899,834,546.28
  5. Step 5: Solve for x
    x = 3,899,834,546.28/70,365.36
  6. Step 6: Final answer
    x = 55,422.65

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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.