Home / 47,060.90-64,947.45-31,117.70

Finding the Fourth Proportional to 47,060.90, 64,947.45 and 31,117.70

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Solution

The fourth proportional to 47,060.90, 64,947.45 and 31,117.70 is: 42,944.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,060.90 : 64,947.45 = 31,117.70 : x
  2. Step 2: Convert to fraction form
    47,060.90/64,947.45 = 31,117.70/x
  3. Step 3: Cross multiply
    47,060.90x = 64,947.45 × 31,117.70
  4. Step 4: Simplify right side
    47,060.90x = 2,021,015,264.87
  5. Step 5: Solve for x
    x = 2,021,015,264.87/47,060.90
  6. Step 6: Final answer
    x = 42,944.68

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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.