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Finding the Fourth Proportional to 60,271.56, 90,406.26 and 18,718.56

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Solution

The fourth proportional to 60,271.56, 90,406.26 and 18,718.56 is: 28,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,271.56 : 90,406.26 = 18,718.56 : x
  2. Step 2: Convert to fraction form
    60,271.56/90,406.26 = 18,718.56/x
  3. Step 3: Cross multiply
    60,271.56x = 90,406.26 × 18,718.56
  4. Step 4: Simplify right side
    60,271.56x = 1,692,275,002.19
  5. Step 5: Solve for x
    x = 1,692,275,002.19/60,271.56
  6. Step 6: Final answer
    x = 28,077.50

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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.