Home / 70,748.30-97,639.12-40,543.40

Finding the Fourth Proportional to 70,748.30, 97,639.12 and 40,543.40

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Solution

The fourth proportional to 70,748.30, 97,639.12 and 40,543.40 is: 55,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,748.30 : 97,639.12 = 40,543.40 : x
  2. Step 2: Convert to fraction form
    70,748.30/97,639.12 = 40,543.40/x
  3. Step 3: Cross multiply
    70,748.30x = 97,639.12 × 40,543.40
  4. Step 4: Simplify right side
    70,748.30x = 3,958,622,192.59
  5. Step 5: Solve for x
    x = 3,958,622,192.59/70,748.30
  6. Step 6: Final answer
    x = 55,953.60

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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.