Home / 77,500.81-107,001.53-47,303.64

Finding the Fourth Proportional to 77,500.81, 107,001.53 and 47,303.64

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Solution

The fourth proportional to 77,500.81, 107,001.53 and 47,303.64 is: 65,309.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,500.81 : 107,001.53 = 47,303.64 : x
  2. Step 2: Convert to fraction form
    77,500.81/107,001.53 = 47,303.64/x
  3. Step 3: Cross multiply
    77,500.81x = 107,001.53 × 47,303.64
  4. Step 4: Simplify right side
    77,500.81x = 5,061,561,854.57
  5. Step 5: Solve for x
    x = 5,061,561,854.57/77,500.81
  6. Step 6: Final answer
    x = 65,309.79

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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.