Home / 76,511.04-105,585.28-42,977.28

Finding the Fourth Proportional to 76,511.04, 105,585.28 and 42,977.28

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Solution

The fourth proportional to 76,511.04, 105,585.28 and 42,977.28 is: 59,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,511.04 : 105,585.28 = 42,977.28 : x
  2. Step 2: Convert to fraction form
    76,511.04/105,585.28 = 42,977.28/x
  3. Step 3: Cross multiply
    76,511.04x = 105,585.28 × 42,977.28
  4. Step 4: Simplify right side
    76,511.04x = 4,537,768,142.44
  5. Step 5: Solve for x
    x = 4,537,768,142.44/76,511.04
  6. Step 6: Final answer
    x = 59,308.67

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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.