Home / 74,774.48-103,188.38-40,782.33

Finding the Fourth Proportional to 74,774.48, 103,188.38 and 40,782.33

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Solution

The fourth proportional to 74,774.48, 103,188.38 and 40,782.33 is: 56,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,774.48 : 103,188.38 = 40,782.33 : x
  2. Step 2: Convert to fraction form
    74,774.48/103,188.38 = 40,782.33/x
  3. Step 3: Cross multiply
    74,774.48x = 103,188.38 × 40,782.33
  4. Step 4: Simplify right side
    74,774.48x = 4,208,262,361.41
  5. Step 5: Solve for x
    x = 4,208,262,361.41/74,774.48
  6. Step 6: Final answer
    x = 56,279.40

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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.