Home / 78,094.68-107,742.78-47,869.08

Finding the Fourth Proportional to 78,094.68, 107,742.78 and 47,869.08

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Solution

The fourth proportional to 78,094.68, 107,742.78 and 47,869.08 is: 66,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,094.68 : 107,742.78 = 47,869.08 : x
  2. Step 2: Convert to fraction form
    78,094.68/107,742.78 = 47,869.08/x
  3. Step 3: Cross multiply
    78,094.68x = 107,742.78 × 47,869.08
  4. Step 4: Simplify right side
    78,094.68x = 5,157,547,755.24
  5. Step 5: Solve for x
    x = 5,157,547,755.24/78,094.68
  6. Step 6: Final answer
    x = 66,042.24

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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.