Home / 91,121.51-125,747.29-50,835.31

Finding the Fourth Proportional to 91,121.51, 125,747.29 and 50,835.31

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Solution

The fourth proportional to 91,121.51, 125,747.29 and 50,835.31 is: 70,152.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,121.51 : 125,747.29 = 50,835.31 : x
  2. Step 2: Convert to fraction form
    91,121.51/125,747.29 = 50,835.31/x
  3. Step 3: Cross multiply
    91,121.51x = 125,747.29 × 50,835.31
  4. Step 4: Simplify right side
    91,121.51x = 6,392,402,027.35
  5. Step 5: Solve for x
    x = 6,392,402,027.35/91,121.51
  6. Step 6: Final answer
    x = 70,152.50

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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.