Home / 70,684.12-105,988.38-37,319.80

Finding the Fourth Proportional to 70,684.12, 105,988.38 and 37,319.80

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Solution

The fourth proportional to 70,684.12, 105,988.38 and 37,319.80 is: 55,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,684.12 : 105,988.38 = 37,319.80 : x
  2. Step 2: Convert to fraction form
    70,684.12/105,988.38 = 37,319.80/x
  3. Step 3: Cross multiply
    70,684.12x = 105,988.38 × 37,319.80
  4. Step 4: Simplify right side
    70,684.12x = 3,955,465,143.92
  5. Step 5: Solve for x
    x = 3,955,465,143.92/70,684.12
  6. Step 6: Final answer
    x = 55,959.74

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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.