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Finding the Fourth Proportional to 78,341.34, 108,037.62 and 60,407.94

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Solution

The fourth proportional to 78,341.34, 108,037.62 and 60,407.94 is: 83,306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,341.34 : 108,037.62 = 60,407.94 : x
  2. Step 2: Convert to fraction form
    78,341.34/108,037.62 = 60,407.94/x
  3. Step 3: Cross multiply
    78,341.34x = 108,037.62 × 60,407.94
  4. Step 4: Simplify right side
    78,341.34x = 6,526,330,066.70
  5. Step 5: Solve for x
    x = 6,526,330,066.70/78,341.34
  6. Step 6: Final answer
    x = 83,306.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.