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Finding the Fourth Proportional to 71,316.56, 98,410.02 and 42,630.53

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Solution

The fourth proportional to 71,316.56, 98,410.02 and 42,630.53 is: 58,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.56 : 98,410.02 = 42,630.53 : x
  2. Step 2: Convert to fraction form
    71,316.56/98,410.02 = 42,630.53/x
  3. Step 3: Cross multiply
    71,316.56x = 98,410.02 × 42,630.53
  4. Step 4: Simplify right side
    71,316.56x = 4,195,271,309.91
  5. Step 5: Solve for x
    x = 4,195,271,309.91/71,316.56
  6. Step 6: Final answer
    x = 58,826.05

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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.