Home / 70,417.14-97,175.64-42,129.48

Finding the Fourth Proportional to 70,417.14, 97,175.64 and 42,129.48

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Solution

The fourth proportional to 70,417.14, 97,175.64 and 42,129.48 is: 58,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,417.14 : 97,175.64 = 42,129.48 : x
  2. Step 2: Convert to fraction form
    70,417.14/97,175.64 = 42,129.48/x
  3. Step 3: Cross multiply
    70,417.14x = 97,175.64 × 42,129.48
  4. Step 4: Simplify right side
    70,417.14x = 4,093,959,181.87
  5. Step 5: Solve for x
    x = 4,093,959,181.87/70,417.14
  6. Step 6: Final answer
    x = 58,138.67

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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.