Home / 53,721.55-80,554.47-28,434.77

Finding the Fourth Proportional to 53,721.55, 80,554.47 and 28,434.77

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Solution

The fourth proportional to 53,721.55, 80,554.47 and 28,434.77 is: 42,637.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,721.55 : 80,554.47 = 28,434.77 : x
  2. Step 2: Convert to fraction form
    53,721.55/80,554.47 = 28,434.77/x
  3. Step 3: Cross multiply
    53,721.55x = 80,554.47 × 28,434.77
  4. Step 4: Simplify right side
    53,721.55x = 2,290,547,826.92
  5. Step 5: Solve for x
    x = 2,290,547,826.92/53,721.55
  6. Step 6: Final answer
    x = 42,637.41

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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.