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Finding the Fourth Proportional to 70,445.52, 97,214.64 and 42,151.20

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Solution

The fourth proportional to 70,445.52, 97,214.64 and 42,151.20 is: 58,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,445.52 : 97,214.64 = 42,151.20 : x
  2. Step 2: Convert to fraction form
    70,445.52/97,214.64 = 42,151.20/x
  3. Step 3: Cross multiply
    70,445.52x = 97,214.64 × 42,151.20
  4. Step 4: Simplify right side
    70,445.52x = 4,097,713,733.57
  5. Step 5: Solve for x
    x = 4,097,713,733.57/70,445.52
  6. Step 6: Final answer
    x = 58,168.55

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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.