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Finding the Fourth Proportional to 65,347.40, 97,802.40 and 57,474.20

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Solution

The fourth proportional to 65,347.40, 97,802.40 and 57,474.20 is: 86,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,347.40 : 97,802.40 = 57,474.20 : x
  2. Step 2: Convert to fraction form
    65,347.40/97,802.40 = 57,474.20/x
  3. Step 3: Cross multiply
    65,347.40x = 97,802.40 × 57,474.20
  4. Step 4: Simplify right side
    65,347.40x = 5,621,114,698.08
  5. Step 5: Solve for x
    x = 5,621,114,698.08/65,347.40
  6. Step 6: Final answer
    x = 86,018.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.