Home / 67,068.47-100,618.25-19,681.64

Finding the Fourth Proportional to 67,068.47, 100,618.25 and 19,681.64

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Solution

The fourth proportional to 67,068.47, 100,618.25 and 19,681.64 is: 29,527.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068.47 : 100,618.25 = 19,681.64 : x
  2. Step 2: Convert to fraction form
    67,068.47/100,618.25 = 19,681.64/x
  3. Step 3: Cross multiply
    67,068.47x = 100,618.25 × 19,681.64
  4. Step 4: Simplify right side
    67,068.47x = 1,980,331,572.43
  5. Step 5: Solve for x
    x = 1,980,331,572.43/67,068.47
  6. Step 6: Final answer
    x = 29,527.02

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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.