Home / 76,504.12-105,574.96-42,512.65

Finding the Fourth Proportional to 76,504.12, 105,574.96 and 42,512.65

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Solution

The fourth proportional to 76,504.12, 105,574.96 and 42,512.65 is: 58,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,504.12 : 105,574.96 = 42,512.65 : x
  2. Step 2: Convert to fraction form
    76,504.12/105,574.96 = 42,512.65/x
  3. Step 3: Cross multiply
    76,504.12x = 105,574.96 × 42,512.65
  4. Step 4: Simplify right side
    76,504.12x = 4,488,271,323.24
  5. Step 5: Solve for x
    x = 4,488,271,323.24/76,504.12
  6. Step 6: Final answer
    x = 58,667.05

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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.