Home / 47,182.86-65,139.21-31,288.77

Finding the Fourth Proportional to 47,182.86, 65,139.21 and 31,288.77

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Solution

The fourth proportional to 47,182.86, 65,139.21 and 31,288.77 is: 43,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,182.86 : 65,139.21 = 31,288.77 : x
  2. Step 2: Convert to fraction form
    47,182.86/65,139.21 = 31,288.77/x
  3. Step 3: Cross multiply
    47,182.86x = 65,139.21 × 31,288.77
  4. Step 4: Simplify right side
    47,182.86x = 2,038,125,759.67
  5. Step 5: Solve for x
    x = 2,038,125,759.67/47,182.86
  6. Step 6: Final answer
    x = 43,196.32

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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.