Home / 76,604.49-105,712.65-42,612.26

Finding the Fourth Proportional to 76,604.49, 105,712.65 and 42,612.26

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Solution

The fourth proportional to 76,604.49, 105,712.65 and 42,612.26 is: 58,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,604.49 : 105,712.65 = 42,612.26 : x
  2. Step 2: Convert to fraction form
    76,604.49/105,712.65 = 42,612.26/x
  3. Step 3: Cross multiply
    76,604.49x = 105,712.65 × 42,612.26
  4. Step 4: Simplify right side
    76,604.49x = 4,504,654,398.53
  5. Step 5: Solve for x
    x = 4,504,654,398.53/76,604.49
  6. Step 6: Final answer
    x = 58,804.05

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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.