Home / 55,913.40-83,870.10-31,030.20

Finding the Fourth Proportional to 55,913.40, 83,870.10 and 31,030.20

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Solution

The fourth proportional to 55,913.40, 83,870.10 and 31,030.20 is: 46,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,913.40 : 83,870.10 = 31,030.20 : x
  2. Step 2: Convert to fraction form
    55,913.40/83,870.10 = 31,030.20/x
  3. Step 3: Cross multiply
    55,913.40x = 83,870.10 × 31,030.20
  4. Step 4: Simplify right side
    55,913.40x = 2,602,505,977.02
  5. Step 5: Solve for x
    x = 2,602,505,977.02/55,913.40
  6. Step 6: Final answer
    x = 46,545.30

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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.