Home / 93,136.38-128,531.00-57,347.04

Finding the Fourth Proportional to 93,136.38, 128,531.00 and 57,347.04

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Solution

The fourth proportional to 93,136.38, 128,531.00 and 57,347.04 is: 79,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,136.38 : 128,531.00 = 57,347.04 : x
  2. Step 2: Convert to fraction form
    93,136.38/128,531.00 = 57,347.04/x
  3. Step 3: Cross multiply
    93,136.38x = 128,531.00 × 57,347.04
  4. Step 4: Simplify right side
    93,136.38x = 7,370,872,111.50
  5. Step 5: Solve for x
    x = 7,370,872,111.50/93,136.38
  6. Step 6: Final answer
    x = 79,140.63

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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.