Home / 78,543.04-117,818.45-22,391.42

Finding the Fourth Proportional to 78,543.04, 117,818.45 and 22,391.42

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Solution

The fourth proportional to 78,543.04, 117,818.45 and 22,391.42 is: 33,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,543.04 : 117,818.45 = 22,391.42 : x
  2. Step 2: Convert to fraction form
    78,543.04/117,818.45 = 22,391.42/x
  3. Step 3: Cross multiply
    78,543.04x = 117,818.45 × 22,391.42
  4. Step 4: Simplify right side
    78,543.04x = 2,638,122,416.64
  5. Step 5: Solve for x
    x = 2,638,122,416.64/78,543.04
  6. Step 6: Final answer
    x = 33,588.24

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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.