Home / 78,466.30-117,699.45-54,846.70

Finding the Fourth Proportional to 78,466.30, 117,699.45 and 54,846.70

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Solution

The fourth proportional to 78,466.30, 117,699.45 and 54,846.70 is: 82,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,466.30 : 117,699.45 = 54,846.70 : x
  2. Step 2: Convert to fraction form
    78,466.30/117,699.45 = 54,846.70/x
  3. Step 3: Cross multiply
    78,466.30x = 117,699.45 × 54,846.70
  4. Step 4: Simplify right side
    78,466.30x = 6,455,426,424.32
  5. Step 5: Solve for x
    x = 6,455,426,424.32/78,466.30
  6. Step 6: Final answer
    x = 82,270.05

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1.5x scale

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.