Home / 78,504.21-108,334.77-42,693.46

Finding the Fourth Proportional to 78,504.21, 108,334.77 and 42,693.46

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Solution

The fourth proportional to 78,504.21, 108,334.77 and 42,693.46 is: 58,916.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,504.21 : 108,334.77 = 42,693.46 : x
  2. Step 2: Convert to fraction form
    78,504.21/108,334.77 = 42,693.46/x
  3. Step 3: Cross multiply
    78,504.21x = 108,334.77 × 42,693.46
  4. Step 4: Simplify right side
    78,504.21x = 4,625,186,169.60
  5. Step 5: Solve for x
    x = 4,625,186,169.60/78,504.21
  6. Step 6: Final answer
    x = 58,916.41

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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.