Home / 78,476.96-108,295.98-42,666.14

Finding the Fourth Proportional to 78,476.96, 108,295.98 and 42,666.14

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Solution

The fourth proportional to 78,476.96, 108,295.98 and 42,666.14 is: 58,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,476.96 : 108,295.98 = 42,666.14 : x
  2. Step 2: Convert to fraction form
    78,476.96/108,295.98 = 42,666.14/x
  3. Step 3: Cross multiply
    78,476.96x = 108,295.98 × 42,666.14
  4. Step 4: Simplify right side
    78,476.96x = 4,620,571,444.12
  5. Step 5: Solve for x
    x = 4,620,571,444.12/78,476.96
  6. Step 6: Final answer
    x = 58,878.06

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1.5x scale

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.