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Finding the Fourth Proportional to 70,600.32, 97,424.64 and 40,386.24

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Solution

The fourth proportional to 70,600.32, 97,424.64 and 40,386.24 is: 55,730.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,600.32 : 97,424.64 = 40,386.24 : x
  2. Step 2: Convert to fraction form
    70,600.32/97,424.64 = 40,386.24/x
  3. Step 3: Cross multiply
    70,600.32x = 97,424.64 × 40,386.24
  4. Step 4: Simplify right side
    70,600.32x = 3,934,614,892.95
  5. Step 5: Solve for x
    x = 3,934,614,892.95/70,600.32
  6. Step 6: Final answer
    x = 55,730.84

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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.