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Finding the Fourth Proportional to 64,510.09, 96,765.03 and 42,318.18

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Solution

The fourth proportional to 64,510.09, 96,765.03 and 42,318.18 is: 63,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,510.09 : 96,765.03 = 42,318.18 : x
  2. Step 2: Convert to fraction form
    64,510.09/96,765.03 = 42,318.18/x
  3. Step 3: Cross multiply
    64,510.09x = 96,765.03 × 42,318.18
  4. Step 4: Simplify right side
    64,510.09x = 4,094,919,957.25
  5. Step 5: Solve for x
    x = 4,094,919,957.25/64,510.09
  6. Step 6: Final answer
    x = 63,477.20

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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.