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Finding the Fourth Proportional to 60,670.35, 91,036.29 and 40,907.40

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Solution

The fourth proportional to 60,670.35, 91,036.29 and 40,907.40 is: 61,381.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,670.35 : 91,036.29 = 40,907.40 : x
  2. Step 2: Convert to fraction form
    60,670.35/91,036.29 = 40,907.40/x
  3. Step 3: Cross multiply
    60,670.35x = 91,036.29 × 40,907.40
  4. Step 4: Simplify right side
    60,670.35x = 3,724,057,741.56
  5. Step 5: Solve for x
    x = 3,724,057,741.56/60,670.35
  6. Step 6: Final answer
    x = 61,381.84

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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.