Home / 90,164.36-124,528.92-61,434.20

Finding the Fourth Proportional to 90,164.36, 124,528.92 and 61,434.20

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Solution

The fourth proportional to 90,164.36, 124,528.92 and 61,434.20 is: 84,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,164.36 : 124,528.92 = 61,434.20 : x
  2. Step 2: Convert to fraction form
    90,164.36/124,528.92 = 61,434.20/x
  3. Step 3: Cross multiply
    90,164.36x = 124,528.92 × 61,434.20
  4. Step 4: Simplify right side
    90,164.36x = 7,650,334,577.06
  5. Step 5: Solve for x
    x = 7,650,334,577.06/90,164.36
  6. Step 6: Final answer
    x = 84,848.76

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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.