Home / 94,152.90-129,876.76-56,405.28

Finding the Fourth Proportional to 94,152.90, 129,876.76 and 56,405.28

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Solution

The fourth proportional to 94,152.90, 129,876.76 and 56,405.28 is: 77,806.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,152.90 : 129,876.76 = 56,405.28 : x
  2. Step 2: Convert to fraction form
    94,152.90/129,876.76 = 56,405.28/x
  3. Step 3: Cross multiply
    94,152.90x = 129,876.76 × 56,405.28
  4. Step 4: Simplify right side
    94,152.90x = 7,325,734,222.90
  5. Step 5: Solve for x
    x = 7,325,734,222.90/94,152.90
  6. Step 6: Final answer
    x = 77,806.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.