Home / 93,721.05-129,337.29-53,438.67

Finding the Fourth Proportional to 93,721.05, 129,337.29 and 53,438.67

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Solution

The fourth proportional to 93,721.05, 129,337.29 and 53,438.67 is: 73,746.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,721.05 : 129,337.29 = 53,438.67 : x
  2. Step 2: Convert to fraction form
    93,721.05/129,337.29 = 53,438.67/x
  3. Step 3: Cross multiply
    93,721.05x = 129,337.29 × 53,438.67
  4. Step 4: Simplify right side
    93,721.05x = 6,911,612,759.00
  5. Step 5: Solve for x
    x = 6,911,612,759.00/93,721.05
  6. Step 6: Final answer
    x = 73,746.64

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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.