Home / 72,629.20-100,225.16-42,416.24

Finding the Fourth Proportional to 72,629.20, 100,225.16 and 42,416.24

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Solution

The fourth proportional to 72,629.20, 100,225.16 and 42,416.24 is: 58,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,629.20 : 100,225.16 = 42,416.24 : x
  2. Step 2: Convert to fraction form
    72,629.20/100,225.16 = 42,416.24/x
  3. Step 3: Cross multiply
    72,629.20x = 100,225.16 × 42,416.24
  4. Step 4: Simplify right side
    72,629.20x = 4,251,174,440.60
  5. Step 5: Solve for x
    x = 4,251,174,440.60/72,629.20
  6. Step 6: Final answer
    x = 58,532.58

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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.