Home / 78,446.14-108,256.77-42,636.14

Finding the Fourth Proportional to 78,446.14, 108,256.77 and 42,636.14

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Solution

The fourth proportional to 78,446.14, 108,256.77 and 42,636.14 is: 58,838.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,446.14 : 108,256.77 = 42,636.14 : x
  2. Step 2: Convert to fraction form
    78,446.14/108,256.77 = 42,636.14/x
  3. Step 3: Cross multiply
    78,446.14x = 108,256.77 × 42,636.14
  4. Step 4: Simplify right side
    78,446.14x = 4,615,650,666.35
  5. Step 5: Solve for x
    x = 4,615,650,666.35/78,446.14
  6. Step 6: Final answer
    x = 58,838.47

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1.5x scale

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.