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Finding the Fourth Proportional to 65,039.60, 97,510.80 and 35,490.80

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Solution

The fourth proportional to 65,039.60, 97,510.80 and 35,490.80 is: 53,209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,039.60 : 97,510.80 = 35,490.80 : x
  2. Step 2: Convert to fraction form
    65,039.60/97,510.80 = 35,490.80/x
  3. Step 3: Cross multiply
    65,039.60x = 97,510.80 × 35,490.80
  4. Step 4: Simplify right side
    65,039.60x = 3,460,736,300.64
  5. Step 5: Solve for x
    x = 3,460,736,300.64/65,039.60
  6. Step 6: Final answer
    x = 53,209.68

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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.