Home / 91,069.80-136,458.90-59,868.60

Finding the Fourth Proportional to 91,069.80, 136,458.90 and 59,868.60

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Solution

The fourth proportional to 91,069.80, 136,458.90 and 59,868.60 is: 89,707.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,069.80 : 136,458.90 = 59,868.60 : x
  2. Step 2: Convert to fraction form
    91,069.80/136,458.90 = 59,868.60/x
  3. Step 3: Cross multiply
    91,069.80x = 136,458.90 × 59,868.60
  4. Step 4: Simplify right side
    91,069.80x = 8,169,603,300.54
  5. Step 5: Solve for x
    x = 8,169,603,300.54/91,069.80
  6. Step 6: Final answer
    x = 89,707.05

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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.