Home / 74,699.70-103,085.60-40,708.21

Finding the Fourth Proportional to 74,699.70, 103,085.60 and 40,708.21

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Solution

The fourth proportional to 74,699.70, 103,085.60 and 40,708.21 is: 56,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,699.70 : 103,085.60 = 40,708.21 : x
  2. Step 2: Convert to fraction form
    74,699.70/103,085.60 = 40,708.21/x
  3. Step 3: Cross multiply
    74,699.70x = 103,085.60 × 40,708.21
  4. Step 4: Simplify right side
    74,699.70x = 4,196,430,252.78
  5. Step 5: Solve for x
    x = 4,196,430,252.78/74,699.70
  6. Step 6: Final answer
    x = 56,177.34

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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.