Home / 90,087.86-135,133.79-30,924.05

Finding the Fourth Proportional to 90,087.86, 135,133.79 and 30,924.05

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Solution

The fourth proportional to 90,087.86, 135,133.79 and 30,924.05 is: 46,386.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,087.86 : 135,133.79 = 30,924.05 : x
  2. Step 2: Convert to fraction form
    90,087.86/135,133.79 = 30,924.05/x
  3. Step 3: Cross multiply
    90,087.86x = 135,133.79 × 30,924.05
  4. Step 4: Simplify right side
    90,087.86x = 4,178,883,248.36
  5. Step 5: Solve for x
    x = 4,178,883,248.36/90,087.86
  6. Step 6: Final answer
    x = 46,386.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.