Home / 70,926.78-97,878.36-40,717.02

Finding the Fourth Proportional to 70,926.78, 97,878.36 and 40,717.02

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Solution

The fourth proportional to 70,926.78, 97,878.36 and 40,717.02 is: 56,189.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,926.78 : 97,878.36 = 40,717.02 : x
  2. Step 2: Convert to fraction form
    70,926.78/97,878.36 = 40,717.02/x
  3. Step 3: Cross multiply
    70,926.78x = 97,878.36 × 40,717.02
  4. Step 4: Simplify right side
    70,926.78x = 3,985,315,141.69
  5. Step 5: Solve for x
    x = 3,985,315,141.69/70,926.78
  6. Step 6: Final answer
    x = 56,189.15

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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.