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Finding the Fourth Proportional to 77,576.60, 107,061.93 and 45,321.59

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Solution

The fourth proportional to 77,576.60, 107,061.93 and 45,321.59 is: 62,547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,576.60 : 107,061.93 = 45,321.59 : x
  2. Step 2: Convert to fraction form
    77,576.60/107,061.93 = 45,321.59/x
  3. Step 3: Cross multiply
    77,576.60x = 107,061.93 × 45,321.59
  4. Step 4: Simplify right side
    77,576.60x = 4,852,216,360.76
  5. Step 5: Solve for x
    x = 4,852,216,360.76/77,576.60
  6. Step 6: Final answer
    x = 62,547.43

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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.