Home / 57,011.49-78,675.66-31,860.99

Finding the Fourth Proportional to 57,011.49, 78,675.66 and 31,860.99

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Solution

The fourth proportional to 57,011.49, 78,675.66 and 31,860.99 is: 43,968.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,011.49 : 78,675.66 = 31,860.99 : x
  2. Step 2: Convert to fraction form
    57,011.49/78,675.66 = 31,860.99/x
  3. Step 3: Cross multiply
    57,011.49x = 78,675.66 × 31,860.99
  4. Step 4: Simplify right side
    57,011.49x = 2,506,684,416.50
  5. Step 5: Solve for x
    x = 2,506,684,416.50/57,011.49
  6. Step 6: Final answer
    x = 43,968.06

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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.