Home / 51,384.60-77,066.10-21,803.40

Finding the Fourth Proportional to 51,384.60, 77,066.10 and 21,803.40

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Solution

The fourth proportional to 51,384.60, 77,066.10 and 21,803.40 is: 32,700.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.60 : 77,066.10 = 21,803.40 : x
  2. Step 2: Convert to fraction form
    51,384.60/77,066.10 = 21,803.40/x
  3. Step 3: Cross multiply
    51,384.60x = 77,066.10 × 21,803.40
  4. Step 4: Simplify right side
    51,384.60x = 1,680,303,004.74
  5. Step 5: Solve for x
    x = 1,680,303,004.74/51,384.60
  6. Step 6: Final answer
    x = 32,700.52

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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.