Home / 78,274.55-108,015.93-48,061.15

Finding the Fourth Proportional to 78,274.55, 108,015.93 and 48,061.15

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Solution

The fourth proportional to 78,274.55, 108,015.93 and 48,061.15 is: 66,322.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,274.55 : 108,015.93 = 48,061.15 : x
  2. Step 2: Convert to fraction form
    78,274.55/108,015.93 = 48,061.15/x
  3. Step 3: Cross multiply
    78,274.55x = 108,015.93 × 48,061.15
  4. Step 4: Simplify right side
    78,274.55x = 5,191,369,544.08
  5. Step 5: Solve for x
    x = 5,191,369,544.08/78,274.55
  6. Step 6: Final answer
    x = 66,322.57

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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.