Home / 78,674.55-108,570.54-42,864.45

Finding the Fourth Proportional to 78,674.55, 108,570.54 and 42,864.45

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Solution

The fourth proportional to 78,674.55, 108,570.54 and 42,864.45 is: 59,152.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,674.55 : 108,570.54 = 42,864.45 : x
  2. Step 2: Convert to fraction form
    78,674.55/108,570.54 = 42,864.45/x
  3. Step 3: Cross multiply
    78,674.55x = 108,570.54 × 42,864.45
  4. Step 4: Simplify right side
    78,674.55x = 4,653,816,483.30
  5. Step 5: Solve for x
    x = 4,653,816,483.30/78,674.55
  6. Step 6: Final answer
    x = 59,152.76

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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.