Home / 78,303.96-117,441.36-36,182.40

Finding the Fourth Proportional to 78,303.96, 117,441.36 and 36,182.40

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Solution

The fourth proportional to 78,303.96, 117,441.36 and 36,182.40 is: 54,266.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,303.96 : 117,441.36 = 36,182.40 : x
  2. Step 2: Convert to fraction form
    78,303.96/117,441.36 = 36,182.40/x
  3. Step 3: Cross multiply
    78,303.96x = 117,441.36 × 36,182.40
  4. Step 4: Simplify right side
    78,303.96x = 4,249,310,264.06
  5. Step 5: Solve for x
    x = 4,249,310,264.06/78,303.96
  6. Step 6: Final answer
    x = 54,266.86

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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.