Home / 90,088.86-135,135.29-30,925.05

Finding the Fourth Proportional to 90,088.86, 135,135.29 and 30,925.05

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Solution

The fourth proportional to 90,088.86, 135,135.29 and 30,925.05 is: 46,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,088.86 : 135,135.29 = 30,925.05 : x
  2. Step 2: Convert to fraction form
    90,088.86/135,135.29 = 30,925.05/x
  3. Step 3: Cross multiply
    90,088.86x = 135,135.29 × 30,925.05
  4. Step 4: Simplify right side
    90,088.86x = 4,179,065,600.01
  5. Step 5: Solve for x
    x = 4,179,065,600.01/90,088.86
  6. Step 6: Final answer
    x = 46,388.26

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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.