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Finding the Fourth Proportional to 70,484.61, 97,259.80 and 40,271.89

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Solution

The fourth proportional to 70,484.61, 97,259.80 and 40,271.89 is: 55,570.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,484.61 : 97,259.80 = 40,271.89 : x
  2. Step 2: Convert to fraction form
    70,484.61/97,259.80 = 40,271.89/x
  3. Step 3: Cross multiply
    70,484.61x = 97,259.80 × 40,271.89
  4. Step 4: Simplify right side
    70,484.61x = 3,916,836,214.45
  5. Step 5: Solve for x
    x = 3,916,836,214.45/70,484.61
  6. Step 6: Final answer
    x = 55,570.09

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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.