Home / 90,051.08-124,269.70-49,767.56

Finding the Fourth Proportional to 90,051.08, 124,269.70 and 49,767.56

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Solution

The fourth proportional to 90,051.08, 124,269.70 and 49,767.56 is: 68,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,051.08 : 124,269.70 = 49,767.56 : x
  2. Step 2: Convert to fraction form
    90,051.08/124,269.70 = 49,767.56/x
  3. Step 3: Cross multiply
    90,051.08x = 124,269.70 × 49,767.56
  4. Step 4: Simplify right side
    90,051.08x = 6,184,599,750.93
  5. Step 5: Solve for x
    x = 6,184,599,750.93/90,051.08
  6. Step 6: Final answer
    x = 68,678.80

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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.