Home / 90,953.50-125,510.96-50,116.36

Finding the Fourth Proportional to 90,953.50, 125,510.96 and 50,116.36

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Solution

The fourth proportional to 90,953.50, 125,510.96 and 50,116.36 is: 69,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,953.50 : 125,510.96 = 50,116.36 : x
  2. Step 2: Convert to fraction form
    90,953.50/125,510.96 = 50,116.36/x
  3. Step 3: Cross multiply
    90,953.50x = 125,510.96 × 50,116.36
  4. Step 4: Simplify right side
    90,953.50x = 6,290,152,455.31
  5. Step 5: Solve for x
    x = 6,290,152,455.31/90,953.50
  6. Step 6: Final answer
    x = 69,157.89

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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.