Home / 70,407.32-97,163.09-42,107.54

Finding the Fourth Proportional to 70,407.32, 97,163.09 and 42,107.54

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Solution

The fourth proportional to 70,407.32, 97,163.09 and 42,107.54 is: 58,108.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,407.32 : 97,163.09 = 42,107.54 : x
  2. Step 2: Convert to fraction form
    70,407.32/97,163.09 = 42,107.54/x
  3. Step 3: Cross multiply
    70,407.32x = 97,163.09 × 42,107.54
  4. Step 4: Simplify right side
    70,407.32x = 4,091,298,002.35
  5. Step 5: Solve for x
    x = 4,091,298,002.35/70,407.32
  6. Step 6: Final answer
    x = 58,108.99

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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.