Home / 90,841.36-125,341.92-53,108.32

Finding the Fourth Proportional to 90,841.36, 125,341.92 and 53,108.32

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Solution

The fourth proportional to 90,841.36, 125,341.92 and 53,108.32 is: 73,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,841.36 : 125,341.92 = 53,108.32 : x
  2. Step 2: Convert to fraction form
    90,841.36/125,341.92 = 53,108.32/x
  3. Step 3: Cross multiply
    90,841.36x = 125,341.92 × 53,108.32
  4. Step 4: Simplify right side
    90,841.36x = 6,656,698,796.77
  5. Step 5: Solve for x
    x = 6,656,698,796.77/90,841.36
  6. Step 6: Final answer
    x = 73,278.28

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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.