Home / 211,581.84-317,373.93-53,810.40

Finding the Fourth Proportional to 211,581.84, 317,373.93 and 53,810.40

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Solution

The fourth proportional to 211,581.84, 317,373.93 and 53,810.40 is: 80,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,581.84 : 317,373.93 = 53,810.40 : x
  2. Step 2: Convert to fraction form
    211,581.84/317,373.93 = 53,810.40/x
  3. Step 3: Cross multiply
    211,581.84x = 317,373.93 × 53,810.40
  4. Step 4: Simplify right side
    211,581.84x = 17,078,018,122.87
  5. Step 5: Solve for x
    x = 17,078,018,122.87/211,581.84
  6. Step 6: Final answer
    x = 80,715.90

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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.