Home / 78,444.84-117,666.24-19,281.03

Finding the Fourth Proportional to 78,444.84, 117,666.24 and 19,281.03

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Solution

The fourth proportional to 78,444.84, 117,666.24 and 19,281.03 is: 28,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,444.84 : 117,666.24 = 19,281.03 : x
  2. Step 2: Convert to fraction form
    78,444.84/117,666.24 = 19,281.03/x
  3. Step 3: Cross multiply
    78,444.84x = 117,666.24 × 19,281.03
  4. Step 4: Simplify right side
    78,444.84x = 2,268,726,303.43
  5. Step 5: Solve for x
    x = 2,268,726,303.43/78,444.84
  6. Step 6: Final answer
    x = 28,921.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.