Home / 90,186.59-124,457.64-49,902.05

Finding the Fourth Proportional to 90,186.59, 124,457.64 and 49,902.05

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Solution

The fourth proportional to 90,186.59, 124,457.64 and 49,902.05 is: 68,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,186.59 : 124,457.64 = 49,902.05 : x
  2. Step 2: Convert to fraction form
    90,186.59/124,457.64 = 49,902.05/x
  3. Step 3: Cross multiply
    90,186.59x = 124,457.64 × 49,902.05
  4. Step 4: Simplify right side
    90,186.59x = 6,210,691,374.16
  5. Step 5: Solve for x
    x = 6,210,691,374.16/90,186.59
  6. Step 6: Final answer
    x = 68,864.91

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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.