Home / 90,937.36-136,393.08-28,606.24

Finding the Fourth Proportional to 90,937.36, 136,393.08 and 28,606.24

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Solution

The fourth proportional to 90,937.36, 136,393.08 and 28,606.24 is: 42,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,937.36 : 136,393.08 = 28,606.24 : x
  2. Step 2: Convert to fraction form
    90,937.36/136,393.08 = 28,606.24/x
  3. Step 3: Cross multiply
    90,937.36x = 136,393.08 × 28,606.24
  4. Step 4: Simplify right side
    90,937.36x = 3,901,693,180.82
  5. Step 5: Solve for x
    x = 3,901,693,180.82/90,937.36
  6. Step 6: Final answer
    x = 42,905.28

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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.