Home / 96,991.72-133,854.06-64,670.56

Finding the Fourth Proportional to 96,991.72, 133,854.06 and 64,670.56

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Solution

The fourth proportional to 96,991.72, 133,854.06 and 64,670.56 is: 89,249.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,991.72 : 133,854.06 = 64,670.56 : x
  2. Step 2: Convert to fraction form
    96,991.72/133,854.06 = 64,670.56/x
  3. Step 3: Cross multiply
    96,991.72x = 133,854.06 × 64,670.56
  4. Step 4: Simplify right side
    96,991.72x = 8,656,417,018.47
  5. Step 5: Solve for x
    x = 8,656,417,018.47/96,991.72
  6. Step 6: Final answer
    x = 89,249.03

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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.