Home / 77,749.34-107,288.60-47,543.22

Finding the Fourth Proportional to 77,749.34, 107,288.60 and 47,543.22

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Solution

The fourth proportional to 77,749.34, 107,288.60 and 47,543.22 is: 65,606.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,749.34 : 107,288.60 = 47,543.22 : x
  2. Step 2: Convert to fraction form
    77,749.34/107,288.60 = 47,543.22/x
  3. Step 3: Cross multiply
    77,749.34x = 107,288.60 × 47,543.22
  4. Step 4: Simplify right side
    77,749.34x = 5,100,845,275.58
  5. Step 5: Solve for x
    x = 5,100,845,275.58/77,749.34
  6. Step 6: Final answer
    x = 65,606.29

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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.