Home / 74,543.08-102,867.58-42,709.93

Finding the Fourth Proportional to 74,543.08, 102,867.58 and 42,709.93

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Solution

The fourth proportional to 74,543.08, 102,867.58 and 42,709.93 is: 58,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,543.08 : 102,867.58 = 42,709.93 : x
  2. Step 2: Convert to fraction form
    74,543.08/102,867.58 = 42,709.93/x
  3. Step 3: Cross multiply
    74,543.08x = 102,867.58 × 42,709.93
  4. Step 4: Simplify right side
    74,543.08x = 4,393,467,141.07
  5. Step 5: Solve for x
    x = 4,393,467,141.07/74,543.08
  6. Step 6: Final answer
    x = 58,938.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.