Home / 70,721.32-97,595.44-38,890.21

Finding the Fourth Proportional to 70,721.32, 97,595.44 and 38,890.21

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Solution

The fourth proportional to 70,721.32, 97,595.44 and 38,890.21 is: 53,668.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,721.32 : 97,595.44 = 38,890.21 : x
  2. Step 2: Convert to fraction form
    70,721.32/97,595.44 = 38,890.21/x
  3. Step 3: Cross multiply
    70,721.32x = 97,595.44 × 38,890.21
  4. Step 4: Simplify right side
    70,721.32x = 3,795,507,683.60
  5. Step 5: Solve for x
    x = 3,795,507,683.60/70,721.32
  6. Step 6: Final answer
    x = 53,668.51

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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.