Home / 76,801.11-105,897.74-62,421.59

Finding the Fourth Proportional to 76,801.11, 105,897.74 and 62,421.59

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Solution

The fourth proportional to 76,801.11, 105,897.74 and 62,421.59 is: 86,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,801.11 : 105,897.74 = 62,421.59 : x
  2. Step 2: Convert to fraction form
    76,801.11/105,897.74 = 62,421.59/x
  3. Step 3: Cross multiply
    76,801.11x = 105,897.74 × 62,421.59
  4. Step 4: Simplify right side
    76,801.11x = 6,610,304,466.61
  5. Step 5: Solve for x
    x = 6,610,304,466.61/76,801.11
  6. Step 6: Final answer
    x = 86,070.43

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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.