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Finding the Fourth Proportional to 92,018.25, 138,019.68 and 25,459.20

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Solution

The fourth proportional to 92,018.25, 138,019.68 and 25,459.20 is: 38,186.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,018.25 : 138,019.68 = 25,459.20 : x
  2. Step 2: Convert to fraction form
    92,018.25/138,019.68 = 25,459.20/x
  3. Step 3: Cross multiply
    92,018.25x = 138,019.68 × 25,459.20
  4. Step 4: Simplify right side
    92,018.25x = 3,513,870,637.06
  5. Step 5: Solve for x
    x = 3,513,870,637.06/92,018.25
  6. Step 6: Final answer
    x = 38,186.67

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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.