Home / 93,581.36-129,141.80-51,139.92

Finding the Fourth Proportional to 93,581.36, 129,141.80 and 51,139.92

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Solution

The fourth proportional to 93,581.36, 129,141.80 and 51,139.92 is: 70,572.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,581.36 : 129,141.80 = 51,139.92 : x
  2. Step 2: Convert to fraction form
    93,581.36/129,141.80 = 51,139.92/x
  3. Step 3: Cross multiply
    93,581.36x = 129,141.80 × 51,139.92
  4. Step 4: Simplify right side
    93,581.36x = 6,604,301,320.66
  5. Step 5: Solve for x
    x = 6,604,301,320.66/93,581.36
  6. Step 6: Final answer
    x = 70,572.83

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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.