Home / 53,320.53-79,985.04-31,136.15

Finding the Fourth Proportional to 53,320.53, 79,985.04 and 31,136.15

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Solution

The fourth proportional to 53,320.53, 79,985.04 and 31,136.15 is: 46,706.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,320.53 : 79,985.04 = 31,136.15 : x
  2. Step 2: Convert to fraction form
    53,320.53/79,985.04 = 31,136.15/x
  3. Step 3: Cross multiply
    53,320.53x = 79,985.04 × 31,136.15
  4. Step 4: Simplify right side
    53,320.53x = 2,490,425,803.27
  5. Step 5: Solve for x
    x = 2,490,425,803.27/53,320.53
  6. Step 6: Final answer
    x = 46,706.70

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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.