Home / 101,035.73-139,430.30-55,715.51

Finding the Fourth Proportional to 101,035.73, 139,430.30 and 55,715.51

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Solution

The fourth proportional to 101,035.73, 139,430.30 and 55,715.51 is: 76,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,035.73 : 139,430.30 = 55,715.51 : x
  2. Step 2: Convert to fraction form
    101,035.73/139,430.30 = 55,715.51/x
  3. Step 3: Cross multiply
    101,035.73x = 139,430.30 × 55,715.51
  4. Step 4: Simplify right side
    101,035.73x = 7,768,429,298.22
  5. Step 5: Solve for x
    x = 7,768,429,298.22/101,035.73
  6. Step 6: Final answer
    x = 76,887.95

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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.