Home / 70,721.51-97,596.38-38,890.63

Finding the Fourth Proportional to 70,721.51, 97,596.38 and 38,890.63

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Solution

The fourth proportional to 70,721.51, 97,596.38 and 38,890.63 is: 53,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,721.51 : 97,596.38 = 38,890.63 : x
  2. Step 2: Convert to fraction form
    70,721.51/97,596.38 = 38,890.63/x
  3. Step 3: Cross multiply
    70,721.51x = 97,596.38 × 38,890.63
  4. Step 4: Simplify right side
    70,721.51x = 3,795,584,021.48
  5. Step 5: Solve for x
    x = 3,795,584,021.48/70,721.51
  6. Step 6: Final answer
    x = 53,669.44

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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.