Home / 74,427.29-102,710.15-40,435.77

Finding the Fourth Proportional to 74,427.29, 102,710.15 and 40,435.77

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Solution

The fourth proportional to 74,427.29, 102,710.15 and 40,435.77 is: 55,801.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,427.29 : 102,710.15 = 40,435.77 : x
  2. Step 2: Convert to fraction form
    74,427.29/102,710.15 = 40,435.77/x
  3. Step 3: Cross multiply
    74,427.29x = 102,710.15 × 40,435.77
  4. Step 4: Simplify right side
    74,427.29x = 4,153,164,103.15
  5. Step 5: Solve for x
    x = 4,153,164,103.15/74,427.29
  6. Step 6: Final answer
    x = 55,801.63

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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.