Home / 76,990.04-106,239.04-45,152.80

Finding the Fourth Proportional to 76,990.04, 106,239.04 and 45,152.80

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Solution

The fourth proportional to 76,990.04, 106,239.04 and 45,152.80 is: 62,306.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,990.04 : 106,239.04 = 45,152.80 : x
  2. Step 2: Convert to fraction form
    76,990.04/106,239.04 = 45,152.80/x
  3. Step 3: Cross multiply
    76,990.04x = 106,239.04 × 45,152.80
  4. Step 4: Simplify right side
    76,990.04x = 4,796,990,125.31
  5. Step 5: Solve for x
    x = 4,796,990,125.31/76,990.04
  6. Step 6: Final answer
    x = 62,306.63

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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.