Home / 90,056.64-124,270.24-49,770.40

Finding the Fourth Proportional to 90,056.64, 124,270.24 and 49,770.40

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Solution

The fourth proportional to 90,056.64, 124,270.24 and 49,770.40 is: 68,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,056.64 : 124,270.24 = 49,770.40 : x
  2. Step 2: Convert to fraction form
    90,056.64/124,270.24 = 49,770.40/x
  3. Step 3: Cross multiply
    90,056.64x = 124,270.24 × 49,770.40
  4. Step 4: Simplify right side
    90,056.64x = 6,184,979,552.90
  5. Step 5: Solve for x
    x = 6,184,979,552.90/90,056.64
  6. Step 6: Final answer
    x = 68,678.77

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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.