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Finding the Fourth Proportional to 60,492.76, 90,739.14 and 18,943

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Solution

The fourth proportional to 60,492.76, 90,739.14 and 18,943 is: 28,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,492.76 : 90,739.14 = 18,943 : x
  2. Step 2: Convert to fraction form
    60,492.76/90,739.14 = 18,943/x
  3. Step 3: Cross multiply
    60,492.76x = 90,739.14 × 18,943
  4. Step 4: Simplify right side
    60,492.76x = 1,718,871,529.02
  5. Step 5: Solve for x
    x = 1,718,871,529.02/60,492.76
  6. Step 6: Final answer
    x = 28,414.50

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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.