Home / 74,988.08-103,483.54-40,996.72

Finding the Fourth Proportional to 74,988.08, 103,483.54 and 40,996.72

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Solution

The fourth proportional to 74,988.08, 103,483.54 and 40,996.72 is: 56,575.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,988.08 : 103,483.54 = 40,996.72 : x
  2. Step 2: Convert to fraction form
    74,988.08/103,483.54 = 40,996.72/x
  3. Step 3: Cross multiply
    74,988.08x = 103,483.54 × 40,996.72
  4. Step 4: Simplify right side
    74,988.08x = 4,242,485,713.99
  5. Step 5: Solve for x
    x = 4,242,485,713.99/74,988.08
  6. Step 6: Final answer
    x = 56,575.47

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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.