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Finding the Fourth Proportional to 65,510.70, 98,266.05 and 64,417.20

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Solution

The fourth proportional to 65,510.70, 98,266.05 and 64,417.20 is: 96,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,510.70 : 98,266.05 = 64,417.20 : x
  2. Step 2: Convert to fraction form
    65,510.70/98,266.05 = 64,417.20/x
  3. Step 3: Cross multiply
    65,510.70x = 98,266.05 × 64,417.20
  4. Step 4: Simplify right side
    65,510.70x = 6,330,023,796.06
  5. Step 5: Solve for x
    x = 6,330,023,796.06/65,510.70
  6. Step 6: Final answer
    x = 96,625.80

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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.