Home / 74,868.64-103,319.08-40,877.82

Finding the Fourth Proportional to 74,868.64, 103,319.08 and 40,877.82

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Solution

The fourth proportional to 74,868.64, 103,319.08 and 40,877.82 is: 56,411.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,868.64 : 103,319.08 = 40,877.82 : x
  2. Step 2: Convert to fraction form
    74,868.64/103,319.08 = 40,877.82/x
  3. Step 3: Cross multiply
    74,868.64x = 103,319.08 × 40,877.82
  4. Step 4: Simplify right side
    74,868.64x = 4,223,458,652.61
  5. Step 5: Solve for x
    x = 4,223,458,652.61/74,868.64
  6. Step 6: Final answer
    x = 56,411.59

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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.