Home / 78,764.16-118,152.64-23,360

Finding the Fourth Proportional to 78,764.16, 118,152.64 and 23,360

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Solution

The fourth proportional to 78,764.16, 118,152.64 and 23,360 is: 35,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,764.16 : 118,152.64 = 23,360 : x
  2. Step 2: Convert to fraction form
    78,764.16/118,152.64 = 23,360/x
  3. Step 3: Cross multiply
    78,764.16x = 118,152.64 × 23,360
  4. Step 4: Simplify right side
    78,764.16x = 2,760,045,670.40
  5. Step 5: Solve for x
    x = 2,760,045,670.40/78,764.16
  6. Step 6: Final answer
    x = 35,041.90

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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.