Home / 70,749.69-97,637.15-38,921.01

Finding the Fourth Proportional to 70,749.69, 97,637.15 and 38,921.01

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Solution

The fourth proportional to 70,749.69, 97,637.15 and 38,921.01 is: 53,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,749.69 : 97,637.15 = 38,921.01 : x
  2. Step 2: Convert to fraction form
    70,749.69/97,637.15 = 38,921.01/x
  3. Step 3: Cross multiply
    70,749.69x = 97,637.15 × 38,921.01
  4. Step 4: Simplify right side
    70,749.69x = 3,800,136,296.92
  5. Step 5: Solve for x
    x = 3,800,136,296.92/70,749.69
  6. Step 6: Final answer
    x = 53,712.41

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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.