Home / 99,431.48-137,216.88-54,110.76

Finding the Fourth Proportional to 99,431.48, 137,216.88 and 54,110.76

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Solution

The fourth proportional to 99,431.48, 137,216.88 and 54,110.76 is: 74,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,431.48 : 137,216.88 = 54,110.76 : x
  2. Step 2: Convert to fraction form
    99,431.48/137,216.88 = 54,110.76/x
  3. Step 3: Cross multiply
    99,431.48x = 137,216.88 × 54,110.76
  4. Step 4: Simplify right side
    99,431.48x = 7,424,909,661.63
  5. Step 5: Solve for x
    x = 7,424,909,661.63/99,431.48
  6. Step 6: Final answer
    x = 74,673.63

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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.