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Finding the Fourth Proportional to 70,528.71, 105,792.60 and 17,937.74

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Solution

The fourth proportional to 70,528.71, 105,792.60 and 17,937.74 is: 26,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,528.71 : 105,792.60 = 17,937.74 : x
  2. Step 2: Convert to fraction form
    70,528.71/105,792.60 = 17,937.74/x
  3. Step 3: Cross multiply
    70,528.71x = 105,792.60 × 17,937.74
  4. Step 4: Simplify right side
    70,528.71x = 1,897,679,623.76
  5. Step 5: Solve for x
    x = 1,897,679,623.76/70,528.71
  6. Step 6: Final answer
    x = 26,906.48

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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.