Home / 51,218.48-70,681.08-28,557.20

Finding the Fourth Proportional to 51,218.48, 70,681.08 and 28,557.20

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Solution

The fourth proportional to 51,218.48, 70,681.08 and 28,557.20 is: 39,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,218.48 : 70,681.08 = 28,557.20 : x
  2. Step 2: Convert to fraction form
    51,218.48/70,681.08 = 28,557.20/x
  3. Step 3: Cross multiply
    51,218.48x = 70,681.08 × 28,557.20
  4. Step 4: Simplify right side
    51,218.48x = 2,018,453,737.78
  5. Step 5: Solve for x
    x = 2,018,453,737.78/51,218.48
  6. Step 6: Final answer
    x = 39,408.70

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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.