Home / 76,259.16-105,234.94-42,270.80

Finding the Fourth Proportional to 76,259.16, 105,234.94 and 42,270.80

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Solution

The fourth proportional to 76,259.16, 105,234.94 and 42,270.80 is: 58,332.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,259.16 : 105,234.94 = 42,270.80 : x
  2. Step 2: Convert to fraction form
    76,259.16/105,234.94 = 42,270.80/x
  3. Step 3: Cross multiply
    76,259.16x = 105,234.94 × 42,270.80
  4. Step 4: Simplify right side
    76,259.16x = 4,448,365,101.75
  5. Step 5: Solve for x
    x = 4,448,365,101.75/76,259.16
  6. Step 6: Final answer
    x = 58,332.21

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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.