Home / 90,888.86-136,351.72-38,298.32

Finding the Fourth Proportional to 90,888.86, 136,351.72 and 38,298.32

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Solution

The fourth proportional to 90,888.86, 136,351.72 and 38,298.32 is: 57,455.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,888.86 : 136,351.72 = 38,298.32 : x
  2. Step 2: Convert to fraction form
    90,888.86/136,351.72 = 38,298.32/x
  3. Step 3: Cross multiply
    90,888.86x = 136,351.72 × 38,298.32
  4. Step 4: Simplify right side
    90,888.86x = 5,222,041,805.11
  5. Step 5: Solve for x
    x = 5,222,041,805.11/90,888.86
  6. Step 6: Final answer
    x = 57,455.25

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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.