Home / 89,856.30-134,784.45-30,686.70

Finding the Fourth Proportional to 89,856.30, 134,784.45 and 30,686.70

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Solution

The fourth proportional to 89,856.30, 134,784.45 and 30,686.70 is: 46,030.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,856.30 : 134,784.45 = 30,686.70 : x
  2. Step 2: Convert to fraction form
    89,856.30/134,784.45 = 30,686.70/x
  3. Step 3: Cross multiply
    89,856.30x = 134,784.45 × 30,686.70
  4. Step 4: Simplify right side
    89,856.30x = 4,136,089,981.82
  5. Step 5: Solve for x
    x = 4,136,089,981.82/89,856.30
  6. Step 6: Final answer
    x = 46,030.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.