Home / 51,675.18-71,319.56-31,543.80

Finding the Fourth Proportional to 51,675.18, 71,319.56 and 31,543.80

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Solution

The fourth proportional to 51,675.18, 71,319.56 and 31,543.80 is: 43,535.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,675.18 : 71,319.56 = 31,543.80 : x
  2. Step 2: Convert to fraction form
    51,675.18/71,319.56 = 31,543.80/x
  3. Step 3: Cross multiply
    51,675.18x = 71,319.56 × 31,543.80
  4. Step 4: Simplify right side
    51,675.18x = 2,249,689,779.01
  5. Step 5: Solve for x
    x = 2,249,689,779.01/51,675.18
  6. Step 6: Final answer
    x = 43,535.21

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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.