Home / 90,235.08-124,522.32-49,946.40

Finding the Fourth Proportional to 90,235.08, 124,522.32 and 49,946.40

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Solution

The fourth proportional to 90,235.08, 124,522.32 and 49,946.40 is: 68,924.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,235.08 : 124,522.32 = 49,946.40 : x
  2. Step 2: Convert to fraction form
    90,235.08/124,522.32 = 49,946.40/x
  3. Step 3: Cross multiply
    90,235.08x = 124,522.32 × 49,946.40
  4. Step 4: Simplify right side
    90,235.08x = 6,219,441,603.65
  5. Step 5: Solve for x
    x = 6,219,441,603.65/90,235.08
  6. Step 6: Final answer
    x = 68,924.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.