Home / 84,779.10-127,168.65-51,564.30

Finding the Fourth Proportional to 84,779.10, 127,168.65 and 51,564.30

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Solution

The fourth proportional to 84,779.10, 127,168.65 and 51,564.30 is: 77,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,779.10 : 127,168.65 = 51,564.30 : x
  2. Step 2: Convert to fraction form
    84,779.10/127,168.65 = 51,564.30/x
  3. Step 3: Cross multiply
    84,779.10x = 127,168.65 × 51,564.30
  4. Step 4: Simplify right side
    84,779.10x = 6,557,362,419.20
  5. Step 5: Solve for x
    x = 6,557,362,419.20/84,779.10
  6. Step 6: Final answer
    x = 77,346.45

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1.5x scale

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.