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Finding the Fourth Proportional to 70,378.47, 97,101.93 and 39,749.93

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Solution

The fourth proportional to 70,378.47, 97,101.93 and 39,749.93 is: 54,843.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,378.47 : 97,101.93 = 39,749.93 : x
  2. Step 2: Convert to fraction form
    70,378.47/97,101.93 = 39,749.93/x
  3. Step 3: Cross multiply
    70,378.47x = 97,101.93 × 39,749.93
  4. Step 4: Simplify right side
    70,378.47x = 3,859,795,014.06
  5. Step 5: Solve for x
    x = 3,859,795,014.06/70,378.47
  6. Step 6: Final answer
    x = 54,843.41

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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.