Home / 76,365.40-105,438.90-50,931.82

Finding the Fourth Proportional to 76,365.40, 105,438.90 and 50,931.82

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Solution

The fourth proportional to 76,365.40, 105,438.90 and 50,931.82 is: 70,322.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,365.40 : 105,438.90 = 50,931.82 : x
  2. Step 2: Convert to fraction form
    76,365.40/105,438.90 = 50,931.82/x
  3. Step 3: Cross multiply
    76,365.40x = 105,438.90 × 50,931.82
  4. Step 4: Simplify right side
    76,365.40x = 5,370,195,075.80
  5. Step 5: Solve for x
    x = 5,370,195,075.80/76,365.40
  6. Step 6: Final answer
    x = 70,322.36

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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.