Home / 99,513.29-137,326.97-56,492.40

Finding the Fourth Proportional to 99,513.29, 137,326.97 and 56,492.40

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Solution

The fourth proportional to 99,513.29, 137,326.97 and 56,492.40 is: 77,958.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,513.29 : 137,326.97 = 56,492.40 : x
  2. Step 2: Convert to fraction form
    99,513.29/137,326.97 = 56,492.40/x
  3. Step 3: Cross multiply
    99,513.29x = 137,326.97 × 56,492.40
  4. Step 4: Simplify right side
    99,513.29x = 7,757,929,837.57
  5. Step 5: Solve for x
    x = 7,757,929,837.57/99,513.29
  6. Step 6: Final answer
    x = 77,958.74

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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.