Home / 86,918.86-119,966.70-52,938.55

Finding the Fourth Proportional to 86,918.86, 119,966.70 and 52,938.55

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Solution

The fourth proportional to 86,918.86, 119,966.70 and 52,938.55 is: 73,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,918.86 : 119,966.70 = 52,938.55 : x
  2. Step 2: Convert to fraction form
    86,918.86/119,966.70 = 52,938.55/x
  3. Step 3: Cross multiply
    86,918.86x = 119,966.70 × 52,938.55
  4. Step 4: Simplify right side
    86,918.86x = 6,350,863,146.29
  5. Step 5: Solve for x
    x = 6,350,863,146.29/86,918.86
  6. Step 6: Final answer
    x = 73,066.57

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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.