Home / 99,326.79-137,071.53-54,005.22

Finding the Fourth Proportional to 99,326.79, 137,071.53 and 54,005.22

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Solution

The fourth proportional to 99,326.79, 137,071.53 and 54,005.22 is: 74,527.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,326.79 : 137,071.53 = 54,005.22 : x
  2. Step 2: Convert to fraction form
    99,326.79/137,071.53 = 54,005.22/x
  3. Step 3: Cross multiply
    99,326.79x = 137,071.53 × 54,005.22
  4. Step 4: Simplify right side
    99,326.79x = 7,402,578,133.39
  5. Step 5: Solve for x
    x = 7,402,578,133.39/99,326.79
  6. Step 6: Final answer
    x = 74,527.51

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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.