Home / 76,968.51-106,218.34-42,975.84

Finding the Fourth Proportional to 76,968.51, 106,218.34 and 42,975.84

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Solution

The fourth proportional to 76,968.51, 106,218.34 and 42,975.84 is: 59,307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,968.51 : 106,218.34 = 42,975.84 : x
  2. Step 2: Convert to fraction form
    76,968.51/106,218.34 = 42,975.84/x
  3. Step 3: Cross multiply
    76,968.51x = 106,218.34 × 42,975.84
  4. Step 4: Simplify right side
    76,968.51x = 4,564,822,836.94
  5. Step 5: Solve for x
    x = 4,564,822,836.94/76,968.51
  6. Step 6: Final answer
    x = 59,307.67

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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.