Home / 86,732.45-119,710.79-56,465.07

Finding the Fourth Proportional to 86,732.45, 119,710.79 and 56,465.07

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Solution

The fourth proportional to 86,732.45, 119,710.79 and 56,465.07 is: 77,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,732.45 : 119,710.79 = 56,465.07 : x
  2. Step 2: Convert to fraction form
    86,732.45/119,710.79 = 56,465.07/x
  3. Step 3: Cross multiply
    86,732.45x = 119,710.79 × 56,465.07
  4. Step 4: Simplify right side
    86,732.45x = 6,759,477,854.78
  5. Step 5: Solve for x
    x = 6,759,477,854.78/86,732.45
  6. Step 6: Final answer
    x = 77,934.82

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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.