Home / 60,638.32-90,946.64-21,206.74

Finding the Fourth Proportional to 60,638.32, 90,946.64 and 21,206.74

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Solution

The fourth proportional to 60,638.32, 90,946.64 and 21,206.74 is: 31,806.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,638.32 : 90,946.64 = 21,206.74 : x
  2. Step 2: Convert to fraction form
    60,638.32/90,946.64 = 21,206.74/x
  3. Step 3: Cross multiply
    60,638.32x = 90,946.64 × 21,206.74
  4. Step 4: Simplify right side
    60,638.32x = 1,928,681,748.35
  5. Step 5: Solve for x
    x = 1,928,681,748.35/60,638.32
  6. Step 6: Final answer
    x = 31,806.32

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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.