Home / 75,686.24-104,448.88-42,152.80

Finding the Fourth Proportional to 75,686.24, 104,448.88 and 42,152.80

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Solution

The fourth proportional to 75,686.24, 104,448.88 and 42,152.80 is: 58,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,686.24 : 104,448.88 = 42,152.80 : x
  2. Step 2: Convert to fraction form
    75,686.24/104,448.88 = 42,152.80/x
  3. Step 3: Cross multiply
    75,686.24x = 104,448.88 × 42,152.80
  4. Step 4: Simplify right side
    75,686.24x = 4,402,812,748.86
  5. Step 5: Solve for x
    x = 4,402,812,748.86/75,686.24
  6. Step 6: Final answer
    x = 58,171.90

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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.