Home / 82,990.08-124,368.48-36,144.72

Finding the Fourth Proportional to 82,990.08, 124,368.48 and 36,144.72

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Solution

The fourth proportional to 82,990.08, 124,368.48 and 36,144.72 is: 54,166.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,990.08 : 124,368.48 = 36,144.72 : x
  2. Step 2: Convert to fraction form
    82,990.08/124,368.48 = 36,144.72/x
  3. Step 3: Cross multiply
    82,990.08x = 124,368.48 × 36,144.72
  4. Step 4: Simplify right side
    82,990.08x = 4,495,263,886.43
  5. Step 5: Solve for x
    x = 4,495,263,886.43/82,990.08
  6. Step 6: Final answer
    x = 54,166.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.