Home / 70,319.36-97,040.94-38,490.32

Finding the Fourth Proportional to 70,319.36, 97,040.94 and 38,490.32

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Solution

The fourth proportional to 70,319.36, 97,040.94 and 38,490.32 is: 53,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,319.36 : 97,040.94 = 38,490.32 : x
  2. Step 2: Convert to fraction form
    70,319.36/97,040.94 = 38,490.32/x
  3. Step 3: Cross multiply
    70,319.36x = 97,040.94 × 38,490.32
  4. Step 4: Simplify right side
    70,319.36x = 3,735,136,833.70
  5. Step 5: Solve for x
    x = 3,735,136,833.70/70,319.36
  6. Step 6: Final answer
    x = 53,116.76

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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.