Home / 94,890.50-130,948.89-57,172.58

Finding the Fourth Proportional to 94,890.50, 130,948.89 and 57,172.58

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Solution

The fourth proportional to 94,890.50, 130,948.89 and 57,172.58 is: 78,898.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,890.50 : 130,948.89 = 57,172.58 : x
  2. Step 2: Convert to fraction form
    94,890.50/130,948.89 = 57,172.58/x
  3. Step 3: Cross multiply
    94,890.50x = 130,948.89 × 57,172.58
  4. Step 4: Simplify right side
    94,890.50x = 7,486,685,889.44
  5. Step 5: Solve for x
    x = 7,486,685,889.44/94,890.50
  6. Step 6: Final answer
    x = 78,898.16

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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.