Home / 76,366.40-105,386.21-42,375.02

Finding the Fourth Proportional to 76,366.40, 105,386.21 and 42,375.02

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Solution

The fourth proportional to 76,366.40, 105,386.21 and 42,375.02 is: 58,477.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,366.40 : 105,386.21 = 42,375.02 : x
  2. Step 2: Convert to fraction form
    76,366.40/105,386.21 = 42,375.02/x
  3. Step 3: Cross multiply
    76,366.40x = 105,386.21 × 42,375.02
  4. Step 4: Simplify right side
    76,366.40x = 4,465,742,017.67
  5. Step 5: Solve for x
    x = 4,465,742,017.67/76,366.40
  6. Step 6: Final answer
    x = 58,477.84

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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.