Home / 90,438.40-124,779.72-52,705.36

Finding the Fourth Proportional to 90,438.40, 124,779.72 and 52,705.36

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Solution

The fourth proportional to 90,438.40, 124,779.72 and 52,705.36 is: 72,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,438.40 : 124,779.72 = 52,705.36 : x
  2. Step 2: Convert to fraction form
    90,438.40/124,779.72 = 52,705.36/x
  3. Step 3: Cross multiply
    90,438.40x = 124,779.72 × 52,705.36
  4. Step 4: Simplify right side
    90,438.40x = 6,576,560,063.30
  5. Step 5: Solve for x
    x = 6,576,560,063.30/90,438.40
  6. Step 6: Final answer
    x = 72,718.67

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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.