Home / 78,756.36-118,000.89-47,526

Finding the Fourth Proportional to 78,756.36, 118,000.89 and 47,526

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Solution

The fourth proportional to 78,756.36, 118,000.89 and 47,526 is: 71,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,756.36 : 118,000.89 = 47,526 : x
  2. Step 2: Convert to fraction form
    78,756.36/118,000.89 = 47,526/x
  3. Step 3: Cross multiply
    78,756.36x = 118,000.89 × 47,526
  4. Step 4: Simplify right side
    78,756.36x = 5,608,110,298.14
  5. Step 5: Solve for x
    x = 5,608,110,298.14/78,756.36
  6. Step 6: Final answer
    x = 71,208.35

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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.