Home / 83,913.60-125,870.40-39,525.60

Finding the Fourth Proportional to 83,913.60, 125,870.40 and 39,525.60

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Solution

The fourth proportional to 83,913.60, 125,870.40 and 39,525.60 is: 59,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,913.60 : 125,870.40 = 39,525.60 : x
  2. Step 2: Convert to fraction form
    83,913.60/125,870.40 = 39,525.60/x
  3. Step 3: Cross multiply
    83,913.60x = 125,870.40 × 39,525.60
  4. Step 4: Simplify right side
    83,913.60x = 4,975,103,082.24
  5. Step 5: Solve for x
    x = 4,975,103,082.24/83,913.60
  6. Step 6: Final answer
    x = 59,288.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.