Home / 78,840.30-118,066.05-52,401.90

Finding the Fourth Proportional to 78,840.30, 118,066.05 and 52,401.90

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Solution

The fourth proportional to 78,840.30, 118,066.05 and 52,401.90 is: 78,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,840.30 : 118,066.05 = 52,401.90 : x
  2. Step 2: Convert to fraction form
    78,840.30/118,066.05 = 52,401.90/x
  3. Step 3: Cross multiply
    78,840.30x = 118,066.05 × 52,401.90
  4. Step 4: Simplify right side
    78,840.30x = 6,186,885,345.50
  5. Step 5: Solve for x
    x = 6,186,885,345.50/78,840.30
  6. Step 6: Final answer
    x = 78,473.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.