Home / 93,730.50-129,348.03-51,289.05

Finding the Fourth Proportional to 93,730.50, 129,348.03 and 51,289.05

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Solution

The fourth proportional to 93,730.50, 129,348.03 and 51,289.05 is: 70,778.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,730.50 : 129,348.03 = 51,289.05 : x
  2. Step 2: Convert to fraction form
    93,730.50/129,348.03 = 51,289.05/x
  3. Step 3: Cross multiply
    93,730.50x = 129,348.03 × 51,289.05
  4. Step 4: Simplify right side
    93,730.50x = 6,634,137,578.07
  5. Step 5: Solve for x
    x = 6,634,137,578.07/93,730.50
  6. Step 6: Final answer
    x = 70,778.86

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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.