Home / 93,666.39-129,220.43-61,408.76

Finding the Fourth Proportional to 93,666.39, 129,220.43 and 61,408.76

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Solution

The fourth proportional to 93,666.39, 129,220.43 and 61,408.76 is: 84,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,666.39 : 129,220.43 = 61,408.76 : x
  2. Step 2: Convert to fraction form
    93,666.39/129,220.43 = 61,408.76/x
  3. Step 3: Cross multiply
    93,666.39x = 129,220.43 × 61,408.76
  4. Step 4: Simplify right side
    93,666.39x = 7,935,265,419.82
  5. Step 5: Solve for x
    x = 7,935,265,419.82/93,666.39
  6. Step 6: Final answer
    x = 84,718.39

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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.