Home / 91,465.34-137,159.12-56,395.58

Finding the Fourth Proportional to 91,465.34, 137,159.12 and 56,395.58

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Solution

The fourth proportional to 91,465.34, 137,159.12 and 56,395.58 is: 84,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,465.34 : 137,159.12 = 56,395.58 : x
  2. Step 2: Convert to fraction form
    91,465.34/137,159.12 = 56,395.58/x
  3. Step 3: Cross multiply
    91,465.34x = 137,159.12 × 56,395.58
  4. Step 4: Simplify right side
    91,465.34x = 7,735,167,579.88
  5. Step 5: Solve for x
    x = 7,735,167,579.88/91,465.34
  6. Step 6: Final answer
    x = 84,569.39

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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.