Home / 90,637.15-135,969.54-46,239.69

Finding the Fourth Proportional to 90,637.15, 135,969.54 and 46,239.69

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Solution

The fourth proportional to 90,637.15, 135,969.54 and 46,239.69 is: 69,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,637.15 : 135,969.54 = 46,239.69 : x
  2. Step 2: Convert to fraction form
    90,637.15/135,969.54 = 46,239.69/x
  3. Step 3: Cross multiply
    90,637.15x = 135,969.54 × 46,239.69
  4. Step 4: Simplify right side
    90,637.15x = 6,287,189,379.04
  5. Step 5: Solve for x
    x = 6,287,189,379.04/90,637.15
  6. Step 6: Final answer
    x = 69,366.58

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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.