Home / 76,281.80-105,271.38-42,293.46

Finding the Fourth Proportional to 76,281.80, 105,271.38 and 42,293.46

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Solution

The fourth proportional to 76,281.80, 105,271.38 and 42,293.46 is: 58,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,281.80 : 105,271.38 = 42,293.46 : x
  2. Step 2: Convert to fraction form
    76,281.80/105,271.38 = 42,293.46/x
  3. Step 3: Cross multiply
    76,281.80x = 105,271.38 × 42,293.46
  4. Step 4: Simplify right side
    76,281.80x = 4,452,290,701.79
  5. Step 5: Solve for x
    x = 4,452,290,701.79/76,281.80
  6. Step 6: Final answer
    x = 58,366.36

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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.