Home / 78,271.84-108,015.08-42,461.86

Finding the Fourth Proportional to 78,271.84, 108,015.08 and 42,461.86

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Solution

The fourth proportional to 78,271.84, 108,015.08 and 42,461.86 is: 58,597.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,271.84 : 108,015.08 = 42,461.86 : x
  2. Step 2: Convert to fraction form
    78,271.84/108,015.08 = 42,461.86/x
  3. Step 3: Cross multiply
    78,271.84x = 108,015.08 × 42,461.86
  4. Step 4: Simplify right side
    78,271.84x = 4,586,520,717.85
  5. Step 5: Solve for x
    x = 4,586,520,717.85/78,271.84
  6. Step 6: Final answer
    x = 58,597.33

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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.