Home / 78,343.96-108,114.24-42,533.68

Finding the Fourth Proportional to 78,343.96, 108,114.24 and 42,533.68

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Solution

The fourth proportional to 78,343.96, 108,114.24 and 42,533.68 is: 58,696.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,343.96 : 108,114.24 = 42,533.68 : x
  2. Step 2: Convert to fraction form
    78,343.96/108,114.24 = 42,533.68/x
  3. Step 3: Cross multiply
    78,343.96x = 108,114.24 × 42,533.68
  4. Step 4: Simplify right side
    78,343.96x = 4,598,496,487.60
  5. Step 5: Solve for x
    x = 4,598,496,487.60/78,343.96
  6. Step 6: Final answer
    x = 58,696.25

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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.