Home / 99,368.40-137,130.17-54,047.39

Finding the Fourth Proportional to 99,368.40, 137,130.17 and 54,047.39

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Solution

The fourth proportional to 99,368.40, 137,130.17 and 54,047.39 is: 74,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,368.40 : 137,130.17 = 54,047.39 : x
  2. Step 2: Convert to fraction form
    99,368.40/137,130.17 = 54,047.39/x
  3. Step 3: Cross multiply
    99,368.40x = 137,130.17 × 54,047.39
  4. Step 4: Simplify right side
    99,368.40x = 7,411,526,822.87
  5. Step 5: Solve for x
    x = 7,411,526,822.87/99,368.40
  6. Step 6: Final answer
    x = 74,586.35

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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.