Home / 55,898.07-77,140.55-30,747.57

Finding the Fourth Proportional to 55,898.07, 77,140.55 and 30,747.57

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Solution

The fourth proportional to 55,898.07, 77,140.55 and 30,747.57 is: 42,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,898.07 : 77,140.55 = 30,747.57 : x
  2. Step 2: Convert to fraction form
    55,898.07/77,140.55 = 30,747.57/x
  3. Step 3: Cross multiply
    55,898.07x = 77,140.55 × 30,747.57
  4. Step 4: Simplify right side
    55,898.07x = 2,371,884,307.23
  5. Step 5: Solve for x
    x = 2,371,884,307.23/55,898.07
  6. Step 6: Final answer
    x = 42,432.31

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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.