Home / 70,150.28-96,802.74-39,938.69

Finding the Fourth Proportional to 70,150.28, 96,802.74 and 39,938.69

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Solution

The fourth proportional to 70,150.28, 96,802.74 and 39,938.69 is: 55,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,150.28 : 96,802.74 = 39,938.69 : x
  2. Step 2: Convert to fraction form
    70,150.28/96,802.74 = 39,938.69/x
  3. Step 3: Cross multiply
    70,150.28x = 96,802.74 × 39,938.69
  4. Step 4: Simplify right side
    70,150.28x = 3,866,174,140.00
  5. Step 5: Solve for x
    x = 3,866,174,140.00/70,150.28
  6. Step 6: Final answer
    x = 55,112.74

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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.