Home / 92,985.63-128,319.51-52,699.05

Finding the Fourth Proportional to 92,985.63, 128,319.51 and 52,699.05

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Solution

The fourth proportional to 92,985.63, 128,319.51 and 52,699.05 is: 72,724.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,985.63 : 128,319.51 = 52,699.05 : x
  2. Step 2: Convert to fraction form
    92,985.63/128,319.51 = 52,699.05/x
  3. Step 3: Cross multiply
    92,985.63x = 128,319.51 × 52,699.05
  4. Step 4: Simplify right side
    92,985.63x = 6,762,316,273.47
  5. Step 5: Solve for x
    x = 6,762,316,273.47/92,985.63
  6. Step 6: Final answer
    x = 72,724.32

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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.