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Finding the Fourth Proportional to 65,235.50, 90,024.99 and 35,427.50

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Solution

The fourth proportional to 65,235.50, 90,024.99 and 35,427.50 is: 48,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,235.50 : 90,024.99 = 35,427.50 : x
  2. Step 2: Convert to fraction form
    65,235.50/90,024.99 = 35,427.50/x
  3. Step 3: Cross multiply
    65,235.50x = 90,024.99 × 35,427.50
  4. Step 4: Simplify right side
    65,235.50x = 3,189,360,333.23
  5. Step 5: Solve for x
    x = 3,189,360,333.23/65,235.50
  6. Step 6: Final answer
    x = 48,889.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.