Home / 90,459.42-135,670.68-34,280.17

Finding the Fourth Proportional to 90,459.42, 135,670.68 and 34,280.17

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Solution

The fourth proportional to 90,459.42, 135,670.68 and 34,280.17 is: 51,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,459.42 : 135,670.68 = 34,280.17 : x
  2. Step 2: Convert to fraction form
    90,459.42/135,670.68 = 34,280.17/x
  3. Step 3: Cross multiply
    90,459.42x = 135,670.68 × 34,280.17
  4. Step 4: Simplify right side
    90,459.42x = 4,650,813,974.42
  5. Step 5: Solve for x
    x = 4,650,813,974.42/90,459.42
  6. Step 6: Final answer
    x = 51,413.26

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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.