Home / 90,089.96-124,320.34-53,320.01

Finding the Fourth Proportional to 90,089.96, 124,320.34 and 53,320.01

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Solution

The fourth proportional to 90,089.96, 124,320.34 and 53,320.01 is: 73,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,089.96 : 124,320.34 = 53,320.01 : x
  2. Step 2: Convert to fraction form
    90,089.96/124,320.34 = 53,320.01/x
  3. Step 3: Cross multiply
    90,089.96x = 124,320.34 × 53,320.01
  4. Step 4: Simplify right side
    90,089.96x = 6,628,760,883.80
  5. Step 5: Solve for x
    x = 6,628,760,883.80/90,089.96
  6. Step 6: Final answer
    x = 73,579.36

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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.