Home / 77,923.81-107,535.34-42,113.73

Finding the Fourth Proportional to 77,923.81, 107,535.34 and 42,113.73

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Solution

The fourth proportional to 77,923.81, 107,535.34 and 42,113.73 is: 58,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,923.81 : 107,535.34 = 42,113.73 : x
  2. Step 2: Convert to fraction form
    77,923.81/107,535.34 = 42,113.73/x
  3. Step 3: Cross multiply
    77,923.81x = 107,535.34 × 42,113.73
  4. Step 4: Simplify right side
    77,923.81x = 4,528,714,379.50
  5. Step 5: Solve for x
    x = 4,528,714,379.50/77,923.81
  6. Step 6: Final answer
    x = 58,117.21

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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.