Home / 78,844.20-118,298.70-28,948.20

Finding the Fourth Proportional to 78,844.20, 118,298.70 and 28,948.20

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Solution

The fourth proportional to 78,844.20, 118,298.70 and 28,948.20 is: 43,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,844.20 : 118,298.70 = 28,948.20 : x
  2. Step 2: Convert to fraction form
    78,844.20/118,298.70 = 28,948.20/x
  3. Step 3: Cross multiply
    78,844.20x = 118,298.70 × 28,948.20
  4. Step 4: Simplify right side
    78,844.20x = 3,424,534,427.34
  5. Step 5: Solve for x
    x = 3,424,534,427.34/78,844.20
  6. Step 6: Final answer
    x = 43,434.20

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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.