Home / 78,902.64-118,355.04-26,312.16

Finding the Fourth Proportional to 78,902.64, 118,355.04 and 26,312.16

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Solution

The fourth proportional to 78,902.64, 118,355.04 and 26,312.16 is: 39,468.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,902.64 : 118,355.04 = 26,312.16 : x
  2. Step 2: Convert to fraction form
    78,902.64/118,355.04 = 26,312.16/x
  3. Step 3: Cross multiply
    78,902.64x = 118,355.04 × 26,312.16
  4. Step 4: Simplify right side
    78,902.64x = 3,114,176,749.29
  5. Step 5: Solve for x
    x = 3,114,176,749.29/78,902.64
  6. Step 6: Final answer
    x = 39,468.60

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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.