Home / 78,652.13-108,521.10-45,941.49

Finding the Fourth Proportional to 78,652.13, 108,521.10 and 45,941.49

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Solution

The fourth proportional to 78,652.13, 108,521.10 and 45,941.49 is: 63,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,652.13 : 108,521.10 = 45,941.49 : x
  2. Step 2: Convert to fraction form
    78,652.13/108,521.10 = 45,941.49/x
  3. Step 3: Cross multiply
    78,652.13x = 108,521.10 × 45,941.49
  4. Step 4: Simplify right side
    78,652.13x = 4,985,621,030.44
  5. Step 5: Solve for x
    x = 4,985,621,030.44/78,652.13
  6. Step 6: Final answer
    x = 63,388.26

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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.