Home / 78,730.24-118,114.80-64,850.08

Finding the Fourth Proportional to 78,730.24, 118,114.80 and 64,850.08

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Solution

The fourth proportional to 78,730.24, 118,114.80 and 64,850.08 is: 97,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,730.24 : 118,114.80 = 64,850.08 : x
  2. Step 2: Convert to fraction form
    78,730.24/118,114.80 = 64,850.08/x
  3. Step 3: Cross multiply
    78,730.24x = 118,114.80 × 64,850.08
  4. Step 4: Simplify right side
    78,730.24x = 7,659,754,229.18
  5. Step 5: Solve for x
    x = 7,659,754,229.18/78,730.24
  6. Step 6: Final answer
    x = 97,291.13

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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.