Home / 91,870.13-126,787.05-51,039.05

Finding the Fourth Proportional to 91,870.13, 126,787.05 and 51,039.05

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Solution

The fourth proportional to 91,870.13, 126,787.05 and 51,039.05 is: 70,437.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,870.13 : 126,787.05 = 51,039.05 : x
  2. Step 2: Convert to fraction form
    91,870.13/126,787.05 = 51,039.05/x
  3. Step 3: Cross multiply
    91,870.13x = 126,787.05 × 51,039.05
  4. Step 4: Simplify right side
    91,870.13x = 6,471,089,950.37
  5. Step 5: Solve for x
    x = 6,471,089,950.37/91,870.13
  6. Step 6: Final answer
    x = 70,437.36

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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.