Home / 74,701.83-103,086.63-40,711.20

Finding the Fourth Proportional to 74,701.83, 103,086.63 and 40,711.20

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Solution

The fourth proportional to 74,701.83, 103,086.63 and 40,711.20 is: 56,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.83 : 103,086.63 = 40,711.20 : x
  2. Step 2: Convert to fraction form
    74,701.83/103,086.63 = 40,711.20/x
  3. Step 3: Cross multiply
    74,701.83x = 103,086.63 × 40,711.20
  4. Step 4: Simplify right side
    74,701.83x = 4,196,779,895.82
  5. Step 5: Solve for x
    x = 4,196,779,895.82/74,701.83
  6. Step 6: Final answer
    x = 56,180.42

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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.