Home / 90,050.68-124,307.90-60,985.45

Finding the Fourth Proportional to 90,050.68, 124,307.90 and 60,985.45

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Solution

The fourth proportional to 90,050.68, 124,307.90 and 60,985.45 is: 84,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,050.68 : 124,307.90 = 60,985.45 : x
  2. Step 2: Convert to fraction form
    90,050.68/124,307.90 = 60,985.45/x
  3. Step 3: Cross multiply
    90,050.68x = 124,307.90 × 60,985.45
  4. Step 4: Simplify right side
    90,050.68x = 7,580,973,220.06
  5. Step 5: Solve for x
    x = 7,580,973,220.06/90,050.68
  6. Step 6: Final answer
    x = 84,185.63

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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.