Home / 76,506.83-105,572.70-42,513.16

Finding the Fourth Proportional to 76,506.83, 105,572.70 and 42,513.16

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Solution

The fourth proportional to 76,506.83, 105,572.70 and 42,513.16 is: 58,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,506.83 : 105,572.70 = 42,513.16 : x
  2. Step 2: Convert to fraction form
    76,506.83/105,572.70 = 42,513.16/x
  3. Step 3: Cross multiply
    76,506.83x = 105,572.70 × 42,513.16
  4. Step 4: Simplify right side
    76,506.83x = 4,488,229,218.70
  5. Step 5: Solve for x
    x = 4,488,229,218.70/76,506.83
  6. Step 6: Final answer
    x = 58,664.43

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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.