Home / 78,913.95-118,386.36-28,994.46

Finding the Fourth Proportional to 78,913.95, 118,386.36 and 28,994.46

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Solution

The fourth proportional to 78,913.95, 118,386.36 and 28,994.46 is: 43,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,913.95 : 118,386.36 = 28,994.46 : x
  2. Step 2: Convert to fraction form
    78,913.95/118,386.36 = 28,994.46/x
  3. Step 3: Cross multiply
    78,913.95x = 118,386.36 × 28,994.46
  4. Step 4: Simplify right side
    78,913.95x = 3,432,548,135.62
  5. Step 5: Solve for x
    x = 3,432,548,135.62/78,913.95
  6. Step 6: Final answer
    x = 43,497.36

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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.