Home / 90,368.61-135,554.28-34,234.71

Finding the Fourth Proportional to 90,368.61, 135,554.28 and 34,234.71

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Solution

The fourth proportional to 90,368.61, 135,554.28 and 34,234.71 is: 51,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,368.61 : 135,554.28 = 34,234.71 : x
  2. Step 2: Convert to fraction form
    90,368.61/135,554.28 = 34,234.71/x
  3. Step 3: Cross multiply
    90,368.61x = 135,554.28 × 34,234.71
  4. Step 4: Simplify right side
    90,368.61x = 4,640,661,465.06
  5. Step 5: Solve for x
    x = 4,640,661,465.06/90,368.61
  6. Step 6: Final answer
    x = 51,352.58

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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.