Home / 70,784.18-97,679.72-38,950.10

Finding the Fourth Proportional to 70,784.18, 97,679.72 and 38,950.10

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Solution

The fourth proportional to 70,784.18, 97,679.72 and 38,950.10 is: 53,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,784.18 : 97,679.72 = 38,950.10 : x
  2. Step 2: Convert to fraction form
    70,784.18/97,679.72 = 38,950.10/x
  3. Step 3: Cross multiply
    70,784.18x = 97,679.72 × 38,950.10
  4. Step 4: Simplify right side
    70,784.18x = 3,804,634,861.97
  5. Step 5: Solve for x
    x = 3,804,634,861.97/70,784.18
  6. Step 6: Final answer
    x = 53,749.79

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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.