Home / 86,742.39-119,737.53-56,535.06

Finding the Fourth Proportional to 86,742.39, 119,737.53 and 56,535.06

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Solution

The fourth proportional to 86,742.39, 119,737.53 and 56,535.06 is: 78,039.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,742.39 : 119,737.53 = 56,535.06 : x
  2. Step 2: Convert to fraction form
    86,742.39/119,737.53 = 56,535.06/x
  3. Step 3: Cross multiply
    86,742.39x = 119,737.53 × 56,535.06
  4. Step 4: Simplify right side
    86,742.39x = 6,769,368,442.80
  5. Step 5: Solve for x
    x = 6,769,368,442.80/86,742.39
  6. Step 6: Final answer
    x = 78,039.91

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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.