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Finding the Fourth Proportional to 70,348, 105,547.92 and 37,066.72

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Solution

The fourth proportional to 70,348, 105,547.92 and 37,066.72 is: 55,613.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,348 : 105,547.92 = 37,066.72 : x
  2. Step 2: Convert to fraction form
    70,348/105,547.92 = 37,066.72/x
  3. Step 3: Cross multiply
    70,348x = 105,547.92 × 37,066.72
  4. Step 4: Simplify right side
    70,348x = 3,912,315,197.22
  5. Step 5: Solve for x
    x = 3,912,315,197.22/70,348
  6. Step 6: Final answer
    x = 55,613.74

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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.