Home / 70,285.74-96,991.47-42,007.02

Finding the Fourth Proportional to 70,285.74, 96,991.47 and 42,007.02

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Solution

The fourth proportional to 70,285.74, 96,991.47 and 42,007.02 is: 57,967.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,285.74 : 96,991.47 = 42,007.02 : x
  2. Step 2: Convert to fraction form
    70,285.74/96,991.47 = 42,007.02/x
  3. Step 3: Cross multiply
    70,285.74x = 96,991.47 × 42,007.02
  4. Step 4: Simplify right side
    70,285.74x = 4,074,322,620.12
  5. Step 5: Solve for x
    x = 4,074,322,620.12/70,285.74
  6. Step 6: Final answer
    x = 57,967.98

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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.