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Finding the Fourth Proportional to 64,290.18, 88,728.03 and 35,990.40

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Solution

The fourth proportional to 64,290.18, 88,728.03 and 35,990.40 is: 49,671.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,290.18 : 88,728.03 = 35,990.40 : x
  2. Step 2: Convert to fraction form
    64,290.18/88,728.03 = 35,990.40/x
  3. Step 3: Cross multiply
    64,290.18x = 88,728.03 × 35,990.40
  4. Step 4: Simplify right side
    64,290.18x = 3,193,357,290.91
  5. Step 5: Solve for x
    x = 3,193,357,290.91/64,290.18
  6. Step 6: Final answer
    x = 49,671.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.