Home / 76,370.40-105,411.24-42,847.20

Finding the Fourth Proportional to 76,370.40, 105,411.24 and 42,847.20

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Solution

The fourth proportional to 76,370.40, 105,411.24 and 42,847.20 is: 59,140.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,370.40 : 105,411.24 = 42,847.20 : x
  2. Step 2: Convert to fraction form
    76,370.40/105,411.24 = 42,847.20/x
  3. Step 3: Cross multiply
    76,370.40x = 105,411.24 × 42,847.20
  4. Step 4: Simplify right side
    76,370.40x = 4,516,576,482.53
  5. Step 5: Solve for x
    x = 4,516,576,482.53/76,370.40
  6. Step 6: Final answer
    x = 59,140.41

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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.