Home / 86,730.33-119,707.83-56,462.91

Finding the Fourth Proportional to 86,730.33, 119,707.83 and 56,462.91

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Solution

The fourth proportional to 86,730.33, 119,707.83 and 56,462.91 is: 77,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,730.33 : 119,707.83 = 56,462.91 : x
  2. Step 2: Convert to fraction form
    86,730.33/119,707.83 = 56,462.91/x
  3. Step 3: Cross multiply
    86,730.33x = 119,707.83 × 56,462.91
  4. Step 4: Simplify right side
    86,730.33x = 6,759,052,431.59
  5. Step 5: Solve for x
    x = 6,759,052,431.59/86,730.33
  6. Step 6: Final answer
    x = 77,931.82

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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.