Home / 77,130.39-114,852.80-74,292.83

Finding the Fourth Proportional to 77,130.39, 114,852.80 and 74,292.83

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Solution

The fourth proportional to 77,130.39, 114,852.80 and 74,292.83 is: 110,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,130.39 : 114,852.80 = 74,292.83 : x
  2. Step 2: Convert to fraction form
    77,130.39/114,852.80 = 74,292.83/x
  3. Step 3: Cross multiply
    77,130.39x = 114,852.80 × 74,292.83
  4. Step 4: Simplify right side
    77,130.39x = 8,532,738,599.70
  5. Step 5: Solve for x
    x = 8,532,738,599.70/77,130.39
  6. Step 6: Final answer
    x = 110,627.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.