Home / 57,208.84-78,946.95-31,715.08

Finding the Fourth Proportional to 57,208.84, 78,946.95 and 31,715.08

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Solution

The fourth proportional to 57,208.84, 78,946.95 and 31,715.08 is: 43,766.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.84 : 78,946.95 = 31,715.08 : x
  2. Step 2: Convert to fraction form
    57,208.84/78,946.95 = 31,715.08/x
  3. Step 3: Cross multiply
    57,208.84x = 78,946.95 × 31,715.08
  4. Step 4: Simplify right side
    57,208.84x = 2,503,808,835.01
  5. Step 5: Solve for x
    x = 2,503,808,835.01/57,208.84
  6. Step 6: Final answer
    x = 43,766.12

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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.