Home / 74,877.78-103,330.82-40,886.25

Finding the Fourth Proportional to 74,877.78, 103,330.82 and 40,886.25

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Solution

The fourth proportional to 74,877.78, 103,330.82 and 40,886.25 is: 56,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,877.78 : 103,330.82 = 40,886.25 : x
  2. Step 2: Convert to fraction form
    74,877.78/103,330.82 = 40,886.25/x
  3. Step 3: Cross multiply
    74,877.78x = 103,330.82 × 40,886.25
  4. Step 4: Simplify right side
    74,877.78x = 4,224,809,534.79
  5. Step 5: Solve for x
    x = 4,224,809,534.79/74,877.78
  6. Step 6: Final answer
    x = 56,422.74

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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.