Home / 53,801.52-74,135.16-53,075.76

Finding the Fourth Proportional to 53,801.52, 74,135.16 and 53,075.76

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Solution

The fourth proportional to 53,801.52, 74,135.16 and 53,075.76 is: 73,135.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,801.52 : 74,135.16 = 53,075.76 : x
  2. Step 2: Convert to fraction form
    53,801.52/74,135.16 = 53,075.76/x
  3. Step 3: Cross multiply
    53,801.52x = 74,135.16 × 53,075.76
  4. Step 4: Simplify right side
    53,801.52x = 3,934,779,959.72
  5. Step 5: Solve for x
    x = 3,934,779,959.72/53,801.52
  6. Step 6: Final answer
    x = 73,135.11

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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.