Home / 78,247.08-117,213.12-36,068.40

Finding the Fourth Proportional to 78,247.08, 117,213.12 and 36,068.40

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Solution

The fourth proportional to 78,247.08, 117,213.12 and 36,068.40 is: 54,030.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,247.08 : 117,213.12 = 36,068.40 : x
  2. Step 2: Convert to fraction form
    78,247.08/117,213.12 = 36,068.40/x
  3. Step 3: Cross multiply
    78,247.08x = 117,213.12 × 36,068.40
  4. Step 4: Simplify right side
    78,247.08x = 4,227,689,697.41
  5. Step 5: Solve for x
    x = 4,227,689,697.41/78,247.08
  6. Step 6: Final answer
    x = 54,030.00

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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.