Home / 90,069.47-135,127.59-26,889.60

Finding the Fourth Proportional to 90,069.47, 135,127.59 and 26,889.60

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Solution

The fourth proportional to 90,069.47, 135,127.59 and 26,889.60 is: 40,341.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,069.47 : 135,127.59 = 26,889.60 : x
  2. Step 2: Convert to fraction form
    90,069.47/135,127.59 = 26,889.60/x
  3. Step 3: Cross multiply
    90,069.47x = 135,127.59 × 26,889.60
  4. Step 4: Simplify right side
    90,069.47x = 3,633,526,261.07
  5. Step 5: Solve for x
    x = 3,633,526,261.07/90,069.47
  6. Step 6: Final answer
    x = 40,341.38

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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.