Home / 74,890.49-103,349.70-40,899.98

Finding the Fourth Proportional to 74,890.49, 103,349.70 and 40,899.98

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Solution

The fourth proportional to 74,890.49, 103,349.70 and 40,899.98 is: 56,442.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,890.49 : 103,349.70 = 40,899.98 : x
  2. Step 2: Convert to fraction form
    74,890.49/103,349.70 = 40,899.98/x
  3. Step 3: Cross multiply
    74,890.49x = 103,349.70 × 40,899.98
  4. Step 4: Simplify right side
    74,890.49x = 4,226,999,992.88
  5. Step 5: Solve for x
    x = 4,226,999,992.88/74,890.49
  6. Step 6: Final answer
    x = 56,442.41

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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.