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Finding the Fourth Proportional to 70,070.10, 96,696.90 and 39,854.76

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Solution

The fourth proportional to 70,070.10, 96,696.90 and 39,854.76 is: 54,999.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,070.10 : 96,696.90 = 39,854.76 : x
  2. Step 2: Convert to fraction form
    70,070.10/96,696.90 = 39,854.76/x
  3. Step 3: Cross multiply
    70,070.10x = 96,696.90 × 39,854.76
  4. Step 4: Simplify right side
    70,070.10x = 3,853,831,742.24
  5. Step 5: Solve for x
    x = 3,853,831,742.24/70,070.10
  6. Step 6: Final answer
    x = 54,999.66

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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.