Home / 78,463.02-108,276.69-42,652.11

Finding the Fourth Proportional to 78,463.02, 108,276.69 and 42,652.11

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Solution

The fourth proportional to 78,463.02, 108,276.69 and 42,652.11 is: 58,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,463.02 : 108,276.69 = 42,652.11 : x
  2. Step 2: Convert to fraction form
    78,463.02/108,276.69 = 42,652.11/x
  3. Step 3: Cross multiply
    78,463.02x = 108,276.69 × 42,652.11
  4. Step 4: Simplify right side
    78,463.02x = 4,618,229,292.32
  5. Step 5: Solve for x
    x = 4,618,229,292.32/78,463.02
  6. Step 6: Final answer
    x = 58,858.67

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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.