Home / 89,705.86-134,431.93-49,742.45

Finding the Fourth Proportional to 89,705.86, 134,431.93 and 49,742.45

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Solution

The fourth proportional to 89,705.86, 134,431.93 and 49,742.45 is: 74,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,705.86 : 134,431.93 = 49,742.45 : x
  2. Step 2: Convert to fraction form
    89,705.86/134,431.93 = 49,742.45/x
  3. Step 3: Cross multiply
    89,705.86x = 134,431.93 × 49,742.45
  4. Step 4: Simplify right side
    89,705.86x = 6,686,973,095.99
  5. Step 5: Solve for x
    x = 6,686,973,095.99/89,705.86
  6. Step 6: Final answer
    x = 74,543.33

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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.