Home / 91,870.36-126,794.96-56,081.20

Finding the Fourth Proportional to 91,870.36, 126,794.96 and 56,081.20

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Solution

The fourth proportional to 91,870.36, 126,794.96 and 56,081.20 is: 77,400.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,870.36 : 126,794.96 = 56,081.20 : x
  2. Step 2: Convert to fraction form
    91,870.36/126,794.96 = 56,081.20/x
  3. Step 3: Cross multiply
    91,870.36x = 126,794.96 × 56,081.20
  4. Step 4: Simplify right side
    91,870.36x = 7,110,813,510.75
  5. Step 5: Solve for x
    x = 7,110,813,510.75/91,870.36
  6. Step 6: Final answer
    x = 77,400.52

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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.