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Finding the Fourth Proportional to 64,510.40, 89,026.80 and 37,648.64

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Solution

The fourth proportional to 64,510.40, 89,026.80 and 37,648.64 is: 51,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,510.40 : 89,026.80 = 37,648.64 : x
  2. Step 2: Convert to fraction form
    64,510.40/89,026.80 = 37,648.64/x
  3. Step 3: Cross multiply
    64,510.40x = 89,026.80 × 37,648.64
  4. Step 4: Simplify right side
    64,510.40x = 3,351,737,943.55
  5. Step 5: Solve for x
    x = 3,351,737,943.55/64,510.40
  6. Step 6: Final answer
    x = 51,956.55

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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.