Home / 74,725.16-103,118.65-40,734.30

Finding the Fourth Proportional to 74,725.16, 103,118.65 and 40,734.30

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Solution

The fourth proportional to 74,725.16, 103,118.65 and 40,734.30 is: 56,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,725.16 : 103,118.65 = 40,734.30 : x
  2. Step 2: Convert to fraction form
    74,725.16/103,118.65 = 40,734.30/x
  3. Step 3: Cross multiply
    74,725.16x = 103,118.65 × 40,734.30
  4. Step 4: Simplify right side
    74,725.16x = 4,200,466,024.70
  5. Step 5: Solve for x
    x = 4,200,466,024.70/74,725.16
  6. Step 6: Final answer
    x = 56,212.21

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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.