Home / 76,853.80-115,302.30-37,412.20

Finding the Fourth Proportional to 76,853.80, 115,302.30 and 37,412.20

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Solution

The fourth proportional to 76,853.80, 115,302.30 and 37,412.20 is: 56,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,853.80 : 115,302.30 = 37,412.20 : x
  2. Step 2: Convert to fraction form
    76,853.80/115,302.30 = 37,412.20/x
  3. Step 3: Cross multiply
    76,853.80x = 115,302.30 × 37,412.20
  4. Step 4: Simplify right side
    76,853.80x = 4,313,712,708.06
  5. Step 5: Solve for x
    x = 4,313,712,708.06/76,853.80
  6. Step 6: Final answer
    x = 56,128.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.