Home / 56,130.64-77,459.10-30,636.16

Finding the Fourth Proportional to 56,130.64, 77,459.10 and 30,636.16

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Solution

The fourth proportional to 56,130.64, 77,459.10 and 30,636.16 is: 42,277.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,130.64 : 77,459.10 = 30,636.16 : x
  2. Step 2: Convert to fraction form
    56,130.64/77,459.10 = 30,636.16/x
  3. Step 3: Cross multiply
    56,130.64x = 77,459.10 × 30,636.16
  4. Step 4: Simplify right side
    56,130.64x = 2,373,049,381.06
  5. Step 5: Solve for x
    x = 2,373,049,381.06/56,130.64
  6. Step 6: Final answer
    x = 42,277.26

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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.