Home / 57,088.52-78,784.35-31,938.02

Finding the Fourth Proportional to 57,088.52, 78,784.35 and 31,938.02

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Solution

The fourth proportional to 57,088.52, 78,784.35 and 31,938.02 is: 44,075.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,088.52 : 78,784.35 = 31,938.02 : x
  2. Step 2: Convert to fraction form
    57,088.52/78,784.35 = 31,938.02/x
  3. Step 3: Cross multiply
    57,088.52x = 78,784.35 × 31,938.02
  4. Step 4: Simplify right side
    57,088.52x = 2,516,216,145.99
  5. Step 5: Solve for x
    x = 2,516,216,145.99/57,088.52
  6. Step 6: Final answer
    x = 44,075.69

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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.