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Finding the Fourth Proportional to 65,254.60, 97,888.36 and 20,870.20

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Solution

The fourth proportional to 65,254.60, 97,888.36 and 20,870.20 is: 31,307.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,254.60 : 97,888.36 = 20,870.20 : x
  2. Step 2: Convert to fraction form
    65,254.60/97,888.36 = 20,870.20/x
  3. Step 3: Cross multiply
    65,254.60x = 97,888.36 × 20,870.20
  4. Step 4: Simplify right side
    65,254.60x = 2,042,949,650.87
  5. Step 5: Solve for x
    x = 2,042,949,650.87/65,254.60
  6. Step 6: Final answer
    x = 31,307.37

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1.5x scale

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.