Home / 81,451.77-112,402.02-45,641.67

Finding the Fourth Proportional to 81,451.77, 112,402.02 and 45,641.67

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Solution

The fourth proportional to 81,451.77, 112,402.02 and 45,641.67 is: 62,984.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,451.77 : 112,402.02 = 45,641.67 : x
  2. Step 2: Convert to fraction form
    81,451.77/112,402.02 = 45,641.67/x
  3. Step 3: Cross multiply
    81,451.77x = 112,402.02 × 45,641.67
  4. Step 4: Simplify right side
    81,451.77x = 5,130,215,904.17
  5. Step 5: Solve for x
    x = 5,130,215,904.17/81,451.77
  6. Step 6: Final answer
    x = 62,984.71

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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.