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Finding the Fourth Proportional to 66,952.48, 100,389.36 and 25,402.40

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Solution

The fourth proportional to 66,952.48, 100,389.36 and 25,402.40 is: 38,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,952.48 : 100,389.36 = 25,402.40 : x
  2. Step 2: Convert to fraction form
    66,952.48/100,389.36 = 25,402.40/x
  3. Step 3: Cross multiply
    66,952.48x = 100,389.36 × 25,402.40
  4. Step 4: Simplify right side
    66,952.48x = 2,550,130,678.46
  5. Step 5: Solve for x
    x = 2,550,130,678.46/66,952.48
  6. Step 6: Final answer
    x = 38,088.67

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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.