Home / 88,999.89-133,521.70-26,670.39

Finding the Fourth Proportional to 88,999.89, 133,521.70 and 26,670.39

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Solution

The fourth proportional to 88,999.89, 133,521.70 and 26,670.39 is: 40,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,999.89 : 133,521.70 = 26,670.39 : x
  2. Step 2: Convert to fraction form
    88,999.89/133,521.70 = 26,670.39/x
  3. Step 3: Cross multiply
    88,999.89x = 133,521.70 × 26,670.39
  4. Step 4: Simplify right side
    88,999.89x = 3,561,075,144.85
  5. Step 5: Solve for x
    x = 3,561,075,144.85/88,999.89
  6. Step 6: Final answer
    x = 40,012.13

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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.