Home / 78,723.99-118,042.65-53,792.19

Finding the Fourth Proportional to 78,723.99, 118,042.65 and 53,792.19

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Solution

The fourth proportional to 78,723.99, 118,042.65 and 53,792.19 is: 80,658.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,723.99 : 118,042.65 = 53,792.19 : x
  2. Step 2: Convert to fraction form
    78,723.99/118,042.65 = 53,792.19/x
  3. Step 3: Cross multiply
    78,723.99x = 118,042.65 × 53,792.19
  4. Step 4: Simplify right side
    78,723.99x = 6,349,772,656.90
  5. Step 5: Solve for x
    x = 6,349,772,656.90/78,723.99
  6. Step 6: Final answer
    x = 80,658.67

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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.