Home / 78,856.10-118,303.01-26,266.04

Finding the Fourth Proportional to 78,856.10, 118,303.01 and 26,266.04

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Solution

The fourth proportional to 78,856.10, 118,303.01 and 26,266.04 is: 39,405.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,856.10 : 118,303.01 = 26,266.04 : x
  2. Step 2: Convert to fraction form
    78,856.10/118,303.01 = 26,266.04/x
  3. Step 3: Cross multiply
    78,856.10x = 118,303.01 × 26,266.04
  4. Step 4: Simplify right side
    78,856.10x = 3,107,351,592.78
  5. Step 5: Solve for x
    x = 3,107,351,592.78/78,856.10
  6. Step 6: Final answer
    x = 39,405.34

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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.