Home / 90,319.50-135,479.34-37,700.28

Finding the Fourth Proportional to 90,319.50, 135,479.34 and 37,700.28

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Solution

The fourth proportional to 90,319.50, 135,479.34 and 37,700.28 is: 56,550.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,319.50 : 135,479.34 = 37,700.28 : x
  2. Step 2: Convert to fraction form
    90,319.50/135,479.34 = 37,700.28/x
  3. Step 3: Cross multiply
    90,319.50x = 135,479.34 × 37,700.28
  4. Step 4: Simplify right side
    90,319.50x = 5,107,609,052.22
  5. Step 5: Solve for x
    x = 5,107,609,052.22/90,319.50
  6. Step 6: Final answer
    x = 56,550.46

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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.