Home / 77,572.02-116,355.71-21,415.56

Finding the Fourth Proportional to 77,572.02, 116,355.71 and 21,415.56

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Solution

The fourth proportional to 77,572.02, 116,355.71 and 21,415.56 is: 32,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,572.02 : 116,355.71 = 21,415.56 : x
  2. Step 2: Convert to fraction form
    77,572.02/116,355.71 = 21,415.56/x
  3. Step 3: Cross multiply
    77,572.02x = 116,355.71 × 21,415.56
  4. Step 4: Simplify right side
    77,572.02x = 2,491,822,581.77
  5. Step 5: Solve for x
    x = 2,491,822,581.77/77,572.02
  6. Step 6: Final answer
    x = 32,122.70

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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.