Home / 90,090.72-124,336.08-56,550.24

Finding the Fourth Proportional to 90,090.72, 124,336.08 and 56,550.24

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Solution

The fourth proportional to 90,090.72, 124,336.08 and 56,550.24 is: 78,046.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,090.72 : 124,336.08 = 56,550.24 : x
  2. Step 2: Convert to fraction form
    90,090.72/124,336.08 = 56,550.24/x
  3. Step 3: Cross multiply
    90,090.72x = 124,336.08 × 56,550.24
  4. Step 4: Simplify right side
    90,090.72x = 7,031,235,164.66
  5. Step 5: Solve for x
    x = 7,031,235,164.66/90,090.72
  6. Step 6: Final answer
    x = 78,046.16

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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.