Home / 91,218.30-125,830.71-53,485.26

Finding the Fourth Proportional to 91,218.30, 125,830.71 and 53,485.26

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Solution

The fourth proportional to 91,218.30, 125,830.71 and 53,485.26 is: 73,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,218.30 : 125,830.71 = 53,485.26 : x
  2. Step 2: Convert to fraction form
    91,218.30/125,830.71 = 53,485.26/x
  3. Step 3: Cross multiply
    91,218.30x = 125,830.71 × 53,485.26
  4. Step 4: Simplify right side
    91,218.30x = 6,730,088,240.33
  5. Step 5: Solve for x
    x = 6,730,088,240.33/91,218.30
  6. Step 6: Final answer
    x = 73,780.02

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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.