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Finding the Fourth Proportional to 65,607.92, 98,427.50 and 21,234.67

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Solution

The fourth proportional to 65,607.92, 98,427.50 and 21,234.67 is: 31,857.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,607.92 : 98,427.50 = 21,234.67 : x
  2. Step 2: Convert to fraction form
    65,607.92/98,427.50 = 21,234.67/x
  3. Step 3: Cross multiply
    65,607.92x = 98,427.50 × 21,234.67
  4. Step 4: Simplify right side
    65,607.92x = 2,090,075,881.91
  5. Step 5: Solve for x
    x = 2,090,075,881.91/65,607.92
  6. Step 6: Final answer
    x = 31,857.06

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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.