Home / 78,913.45-118,402.47-29,035.50

Finding the Fourth Proportional to 78,913.45, 118,402.47 and 29,035.50

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Solution

The fourth proportional to 78,913.45, 118,402.47 and 29,035.50 is: 43,565.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,913.45 : 118,402.47 = 29,035.50 : x
  2. Step 2: Convert to fraction form
    78,913.45/118,402.47 = 29,035.50/x
  3. Step 3: Cross multiply
    78,913.45x = 118,402.47 × 29,035.50
  4. Step 4: Simplify right side
    78,913.45x = 3,437,875,014.02
  5. Step 5: Solve for x
    x = 3,437,875,014.02/78,913.45
  6. Step 6: Final answer
    x = 43,565.13

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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.