Home / 89,678.64-134,484.84-39,071.40

Finding the Fourth Proportional to 89,678.64, 134,484.84 and 39,071.40

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Solution

The fourth proportional to 89,678.64, 134,484.84 and 39,071.40 is: 58,592.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,678.64 : 134,484.84 = 39,071.40 : x
  2. Step 2: Convert to fraction form
    89,678.64/134,484.84 = 39,071.40/x
  3. Step 3: Cross multiply
    89,678.64x = 134,484.84 × 39,071.40
  4. Step 4: Simplify right side
    89,678.64x = 5,254,510,977.58
  5. Step 5: Solve for x
    x = 5,254,510,977.58/89,678.64
  6. Step 6: Final answer
    x = 58,592.67

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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.