Home / 99,328.79-137,074.29-54,007.22

Finding the Fourth Proportional to 99,328.79, 137,074.29 and 54,007.22

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Solution

The fourth proportional to 99,328.79, 137,074.29 and 54,007.22 is: 74,530.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,328.79 : 137,074.29 = 54,007.22 : x
  2. Step 2: Convert to fraction form
    99,328.79/137,074.29 = 54,007.22/x
  3. Step 3: Cross multiply
    99,328.79x = 137,074.29 × 54,007.22
  4. Step 4: Simplify right side
    99,328.79x = 7,403,001,336.37
  5. Step 5: Solve for x
    x = 7,403,001,336.37/99,328.79
  6. Step 6: Final answer
    x = 74,530.27

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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.