Home / 56,271.04-77,655.60-31,122.16

Finding the Fourth Proportional to 56,271.04, 77,655.60 and 31,122.16

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Solution

The fourth proportional to 56,271.04, 77,655.60 and 31,122.16 is: 42,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,271.04 : 77,655.60 = 31,122.16 : x
  2. Step 2: Convert to fraction form
    56,271.04/77,655.60 = 31,122.16/x
  3. Step 3: Cross multiply
    56,271.04x = 77,655.60 × 31,122.16
  4. Step 4: Simplify right side
    56,271.04x = 2,416,810,008.10
  5. Step 5: Solve for x
    x = 2,416,810,008.10/56,271.04
  6. Step 6: Final answer
    x = 42,949.45

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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.