Home / 86,730.95-119,708.71-56,463.56

Finding the Fourth Proportional to 86,730.95, 119,708.71 and 56,463.56

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Solution

The fourth proportional to 86,730.95, 119,708.71 and 56,463.56 is: 77,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,730.95 : 119,708.71 = 56,463.56 : x
  2. Step 2: Convert to fraction form
    86,730.95/119,708.71 = 56,463.56/x
  3. Step 3: Cross multiply
    86,730.95x = 119,708.71 × 56,463.56
  4. Step 4: Simplify right side
    86,730.95x = 6,759,180,087.72
  5. Step 5: Solve for x
    x = 6,759,180,087.72/86,730.95
  6. Step 6: Final answer
    x = 77,932.74

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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.