Home / 78,459.38-108,289.68-46,622.14

Finding the Fourth Proportional to 78,459.38, 108,289.68 and 46,622.14

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Solution

The fourth proportional to 78,459.38, 108,289.68 and 46,622.14 is: 64,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,459.38 : 108,289.68 = 46,622.14 : x
  2. Step 2: Convert to fraction form
    78,459.38/108,289.68 = 46,622.14/x
  3. Step 3: Cross multiply
    78,459.38x = 108,289.68 × 46,622.14
  4. Step 4: Simplify right side
    78,459.38x = 5,048,696,621.52
  5. Step 5: Solve for x
    x = 5,048,696,621.52/78,459.38
  6. Step 6: Final answer
    x = 64,347.90

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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.