Home / 72,150.60-99,567.54-40,319.49

Finding the Fourth Proportional to 72,150.60, 99,567.54 and 40,319.49

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Solution

The fourth proportional to 72,150.60, 99,567.54 and 40,319.49 is: 55,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,150.60 : 99,567.54 = 40,319.49 : x
  2. Step 2: Convert to fraction form
    72,150.60/99,567.54 = 40,319.49/x
  3. Step 3: Cross multiply
    72,150.60x = 99,567.54 × 40,319.49
  4. Step 4: Simplify right side
    72,150.60x = 4,014,512,433.35
  5. Step 5: Solve for x
    x = 4,014,512,433.35/72,150.60
  6. Step 6: Final answer
    x = 55,640.74

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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.