Home / 52,579.69-78,869.70-13,136.81

Finding the Fourth Proportional to 52,579.69, 78,869.70 and 13,136.81

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Solution

The fourth proportional to 52,579.69, 78,869.70 and 13,136.81 is: 19,705.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,579.69 : 78,869.70 = 13,136.81 : x
  2. Step 2: Convert to fraction form
    52,579.69/78,869.70 = 13,136.81/x
  3. Step 3: Cross multiply
    52,579.69x = 78,869.70 × 13,136.81
  4. Step 4: Simplify right side
    52,579.69x = 1,036,095,869.31
  5. Step 5: Solve for x
    x = 1,036,095,869.31/52,579.69
  6. Step 6: Final answer
    x = 19,705.25

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1.5x scale

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.