Home / 90,902.79-125,507.43-56,924.91

Finding the Fourth Proportional to 90,902.79, 125,507.43 and 56,924.91

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Solution

The fourth proportional to 90,902.79, 125,507.43 and 56,924.91 is: 78,594.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,902.79 : 125,507.43 = 56,924.91 : x
  2. Step 2: Convert to fraction form
    90,902.79/125,507.43 = 56,924.91/x
  3. Step 3: Cross multiply
    90,902.79x = 125,507.43 × 56,924.91
  4. Step 4: Simplify right side
    90,902.79x = 7,144,499,157.08
  5. Step 5: Solve for x
    x = 7,144,499,157.08/90,902.79
  6. Step 6: Final answer
    x = 78,594.94

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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.