Home / 55,852.99-77,075.18-30,702.31

Finding the Fourth Proportional to 55,852.99, 77,075.18 and 30,702.31

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Solution

The fourth proportional to 55,852.99, 77,075.18 and 30,702.31 is: 42,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,852.99 : 77,075.18 = 30,702.31 : x
  2. Step 2: Convert to fraction form
    55,852.99/77,075.18 = 30,702.31/x
  3. Step 3: Cross multiply
    55,852.99x = 77,075.18 × 30,702.31
  4. Step 4: Simplify right side
    55,852.99x = 2,366,385,916.15
  5. Step 5: Solve for x
    x = 2,366,385,916.15/55,852.99
  6. Step 6: Final answer
    x = 42,368.12

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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.