Home / 84,312.74-116,405.82-54,111.08

Finding the Fourth Proportional to 84,312.74, 116,405.82 and 54,111.08

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Solution

The fourth proportional to 84,312.74, 116,405.82 and 54,111.08 is: 74,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,312.74 : 116,405.82 = 54,111.08 : x
  2. Step 2: Convert to fraction form
    84,312.74/116,405.82 = 54,111.08/x
  3. Step 3: Cross multiply
    84,312.74x = 116,405.82 × 54,111.08
  4. Step 4: Simplify right side
    84,312.74x = 6,298,844,638.49
  5. Step 5: Solve for x
    x = 6,298,844,638.49/84,312.74
  6. Step 6: Final answer
    x = 74,708.10

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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.