Home / 61,155.49-84,360.40-38,486.02

Finding the Fourth Proportional to 61,155.49, 84,360.40 and 38,486.02

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Solution

The fourth proportional to 61,155.49, 84,360.40 and 38,486.02 is: 53,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,155.49 : 84,360.40 = 38,486.02 : x
  2. Step 2: Convert to fraction form
    61,155.49/84,360.40 = 38,486.02/x
  3. Step 3: Cross multiply
    61,155.49x = 84,360.40 × 38,486.02
  4. Step 4: Simplify right side
    61,155.49x = 3,246,696,041.61
  5. Step 5: Solve for x
    x = 3,246,696,041.61/61,155.49
  6. Step 6: Final answer
    x = 53,089.20

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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.