Home / 57,038.14-78,712.86-31,887.64

Finding the Fourth Proportional to 57,038.14, 78,712.86 and 31,887.64

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Solution

The fourth proportional to 57,038.14, 78,712.86 and 31,887.64 is: 44,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,038.14 : 78,712.86 = 31,887.64 : x
  2. Step 2: Convert to fraction form
    57,038.14/78,712.86 = 31,887.64/x
  3. Step 3: Cross multiply
    57,038.14x = 78,712.86 × 31,887.64
  4. Step 4: Simplify right side
    57,038.14x = 2,509,967,343.05
  5. Step 5: Solve for x
    x = 2,509,967,343.05/57,038.14
  6. Step 6: Final answer
    x = 44,005.07

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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.