Home / 77,854.68-116,782.02-18,690.35

Finding the Fourth Proportional to 77,854.68, 116,782.02 and 18,690.35

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Solution

The fourth proportional to 77,854.68, 116,782.02 and 18,690.35 is: 28,035.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,854.68 : 116,782.02 = 18,690.35 : x
  2. Step 2: Convert to fraction form
    77,854.68/116,782.02 = 18,690.35/x
  3. Step 3: Cross multiply
    77,854.68x = 116,782.02 × 18,690.35
  4. Step 4: Simplify right side
    77,854.68x = 2,182,696,827.51
  5. Step 5: Solve for x
    x = 2,182,696,827.51/77,854.68
  6. Step 6: Final answer
    x = 28,035.53

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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.