Home / 91,637.12-137,460.24-28,500.26

Finding the Fourth Proportional to 91,637.12, 137,460.24 and 28,500.26

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Solution

The fourth proportional to 91,637.12, 137,460.24 and 28,500.26 is: 42,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,637.12 : 137,460.24 = 28,500.26 : x
  2. Step 2: Convert to fraction form
    91,637.12/137,460.24 = 28,500.26/x
  3. Step 3: Cross multiply
    91,637.12x = 137,460.24 × 28,500.26
  4. Step 4: Simplify right side
    91,637.12x = 3,917,651,892.36
  5. Step 5: Solve for x
    x = 3,917,651,892.36/91,637.12
  6. Step 6: Final answer
    x = 42,751.80

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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.