Home / 90,435.78-124,807.77-50,153.40

Finding the Fourth Proportional to 90,435.78, 124,807.77 and 50,153.40

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Solution

The fourth proportional to 90,435.78, 124,807.77 and 50,153.40 is: 69,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,435.78 : 124,807.77 = 50,153.40 : x
  2. Step 2: Convert to fraction form
    90,435.78/124,807.77 = 50,153.40/x
  3. Step 3: Cross multiply
    90,435.78x = 124,807.77 × 50,153.40
  4. Step 4: Simplify right side
    90,435.78x = 6,259,534,011.92
  5. Step 5: Solve for x
    x = 6,259,534,011.92/90,435.78
  6. Step 6: Final answer
    x = 69,215.24

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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.